Update version to 2026.6.201

Merge pull request 'Fix single-line brace formatting to preserve internal whitespace' (#31 ) from bug_fixing into main
Reviewed-on: #31
2026-06-22 06:50:56 +00:00 · 2026-06-22 06:50:16 +00:00 · 2026-06-22 08:49:22 +02:00 · 2026-06-22 06:34:00 +00:00 · 2026-06-22 06:32:26 +00:00 · 2026-06-22 08:29:48 +02:00
354 changed files with 76636 additions and 1983 deletions
@@ -9,8 +9,4 @@ __pycache__
 .nox
 *.g4
 .antlr
-
-target
-client/node_modules
-client/dist
-client/out
+.claude
@@ -1,10 +0,0 @@
-This folder contains debug and task configurations for developing the extension and the Rust language server.
-
- `launch.json`: Debug configurations for the Extension Host and for the Rust server (expects `CodeLLDB` extension).
- `tasks.json`: Tasks to build the client (`npm run build`) and server (`cargo build`).
-
-Usage:
-
-1. Install the `vadimcn.vscode-lldb` (CodeLLDB) extension for Rust debugging.
-2. Run the `npm: build (client)` task or use the Run Extension configuration which will run it as a preLaunchTask.
-3. Use `Launch Rust server (CodeLLDB)` to build and run the server under the debugger.
@@ -1,28 +1,74 @@
+// A launch configuration that compiles the extension and then opens it inside a new window
+// Use IntelliSense to learn about possible attributes.
+// Hover to view descriptions of existing attributes.
+// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
 {
-    // Use IntelliSense to learn about possible attributes.
-    // Hover to view descriptions of existing attributes.
-    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        {
+            "name": "Run Extension",
            "type": "extensionHost",
            "request": "launch",
-            "name": "Run TCL LSP",
-            "runtimeExecutable": "${execPath}/",
-            "args": ["--extensionDevelopmentPath=${workspaceFolder}/", "${workspaceFolder}/test/"],
-            "outFiles": ["${workspaceFolder}/client/out/**/*.js"],
+            "runtimeExecutable": "${execPath}",
+            "args": ["--extensionDevelopmentPath=${workspaceFolder}"],
+            "outFiles": ["${workspaceFolder}/client/**/*.js"],
            "autoAttachChildProcesses": true,
-            "preLaunchTask": "npm: build"
+            "preLaunchTask": {
+                "type": "npm",
+                "script": "watch"
+            }
        },
        {
-            "name": "Debug Rust LSP Server (debug)",
-            "type": "lldb",
+            "name": "Python Attach",
+            "type": "debugpy",
+            "request": "attach",
+            "processId": "${command:pickProcess}",
+            "justMyCode": false,
+            "presentation": {
+                "hidden": false,
+                "group": "",
+                "order": 3
+            }
+        },
+        {
+            "name": "Debug Extension (hidden)",
+            "type": "extensionHost",
            "request": "launch",
-            "program": "${workspaceFolder}/server/target/debug/server.exe",
-            "args": [],
-            "env": { "RUST_BACKTRACE": "1" },
-            "preLaunchTask": "cargo: build server",
-            "stopOnEntry": true
+            "args": ["--extensionDevelopmentPath=${workspaceFolder}"],
+            "outFiles": ["${workspaceFolder}/client/**/*.js"],
+            "env": {
+                "USE_DEBUGPY": "True"
+            },
+            "presentation": {
+                "hidden": true,
+                "group": "",
+                "order": 4
+            }
+        },
+        {
+            "name": "Python debug server (hidden)",
+            "type": "debugpy",
+            "request": "attach",
+            "listen": { "host": "localhost", "port": 5678 },
+            "justMyCode": true,
+            "presentation": {
+                "hidden": true,
+                "group": "",
+                "order": 4
+            }
+        }
+    ],
+    "compounds": [
+        {
+            "name": "Debug Extension and Python",
+            "configurations": ["Python debug server (hidden)", "Debug Extension (hidden)"],
+            "stopAll": true,
+            "preLaunchTask": "npm: watch",
+            "presentation": {
+                "hidden": false,
+                "group": "",
+                "order": 1
+            }
        }
    ]
 }
@@ -1,11 +0,0 @@
-{
-    "version": "2.0.0",
-    "tasks": [
-        {
-            "type": "npm",
-            "script": "build",
-            "label": "npm: build",
-            "path": "./"
-        }
-    ]
-}
@@ -12,4 +12,12 @@

 ## [0.2.0]

- Add DEF File Support
+- Add DEF File Support
+
+## [2026.6.100]
+
+- Fix several bugs
+
+## [2026.6.200]
+
+- Fix foramtting bug
@@ -19,8 +19,9 @@ A comprehensive VS Code extension providing language support for NX CAM postproc
 ## Installation

 1. Install from the VS Code Marketplace
-2. Open any `.cdl`, `.tcl`, or `.def` file
-3. The extension will automatically activate and provide language support
+2. Install Python 3.8 or higher
+3. Open any `.cdl`, `.tcl`, or `.def` file
+4. The extension will automatically activate and provide language support

 ## Configuration

@@ -1,56 +0,0 @@
-//@ts-check
-const esbuild = require('esbuild');
-
-/**
- * @typedef {import('esbuild').BuildOptions} BuildOptions
- */
-
-/** @type BuildOptions */
-const sharedDesktopOptions = {
-	bundle: true,
-	external: ['vscode'],
-	target: 'es2020',
-	platform: 'node',
-	sourcemap: true,
-};
-
-/** @type BuildOptions */
-const desktopOptions = {
-	entryPoints: ['src/extension.ts'],
-	outfile: 'dist/desktop/extension.js',
-	format: 'cjs',
-	...sharedDesktopOptions,
-};
-
-function createContexts() {
-	return Promise.all([esbuild.context(desktopOptions)]);
-}
-
-createContexts()
-	.then((contexts) => {
-		if (process.argv[2] === '--watch') {
-			const promises = [];
-			for (const context of contexts) {
-				promises.push(context.watch());
-			}
-			return Promise.all(promises).then(() => {
-				return undefined;
-			});
-		} else {
-			const promises = [];
-			for (const context of contexts) {
-				promises.push(context.rebuild());
-			}
-			Promise.all(promises)
-				.then(async () => {
-					for (const context of contexts) {
-						await context.dispose();
-					}
-				})
-				.then(() => {
-					return undefined;
-				})
-				.catch(console.error);
-		}
-	})
-	.catch(console.error);
@@ -10,31 +10,31 @@
      "license": "MIT",
      "dependencies": {
        "@vscode/python-extension": "^1.0.5",
-        "fs-extra": "11.3.1"
+        "fs-extra": "^11.3.0",
+        "vscode-languageclient": "^9.0.1"
      },
      "devDependencies": {
-        "@types/node": "^22.18.0",
-        "@types/vscode": "^1.96.0",
-        "vscode-languageclient": "^9.0.1"
+        "@types/node": "^22.10.5",
+        "@types/vscode": "^1.96.0"
      },
      "engines": {
        "vscode": "^1.96.0"
      }
    },
    "node_modules/@types/node": {
-      "version": "22.18.0",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-22.18.0.tgz",
-      "integrity": "sha512-m5ObIqwsUp6BZzyiy4RdZpzWGub9bqLJMvZDD0QMXhxjqMHMENlj+SqF5QxoUwaQNFe+8kz8XM8ZQhqkQPTgMQ==",
+      "version": "22.10.5",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-22.10.5.tgz",
+      "integrity": "sha512-F8Q+SeGimwOo86fiovQh8qiXfFEh2/ocYv7tU5pJ3EXMSSxk1Joj5wefpFK2fHTf/N6HKGSxIDBT9f3gCxXPkQ==",
      "dev": true,
      "license": "MIT",
      "dependencies": {
-        "undici-types": "~6.21.0"
+        "undici-types": "~6.20.0"
      }
    },
    "node_modules/@types/vscode": {
-      "version": "1.103.0",
-      "resolved": "https://registry.npmjs.org/@types/vscode/-/vscode-1.103.0.tgz",
-      "integrity": "sha512-o4hanZAQdNfsKecexq9L3eHICd0AAvdbLk6hA60UzGXbGH/q8b/9xv2RgR7vV3ZcHuyKVq7b37IGd/+gM4Tu+Q==",
+      "version": "1.96.0",
+      "resolved": "https://registry.npmjs.org/@types/vscode/-/vscode-1.96.0.tgz",
+      "integrity": "sha512-qvZbSZo+K4ZYmmDuaodMbAa67Pl6VDQzLKFka6rq+3WUTY4Kro7Bwoi0CuZLO/wema0ygcmpwow7zZfPJTs5jg==",
      "dev": true,
      "license": "MIT"
    },
@@ -52,23 +52,21 @@
      "version": "1.0.2",
      "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz",
      "integrity": "sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==",
-      "dev": true,
      "license": "MIT"
    },
    "node_modules/brace-expansion": {
      "version": "2.0.2",
      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.2.tgz",
      "integrity": "sha512-Jt0vHyM+jmUBqojB7E1NIYadt0vI0Qxjxd2TErW94wDz+E2LAm5vKMXXwg6ZZBTHPuUlDgQHKXvjGBdfcF1ZDQ==",
-      "dev": true,
      "license": "MIT",
      "dependencies": {
        "balanced-match": "^1.0.0"
      }
    },
    "node_modules/fs-extra": {
-      "version": "11.3.1",
-      "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-11.3.1.tgz",
-      "integrity": "sha512-eXvGGwZ5CL17ZSwHWd3bbgk7UUpF6IFHtP57NYYakPvHOs8GDgDe5KJI36jIJzDkJ6eJjuzRA8eBQb6SkKue0g==",
+      "version": "11.3.0",
+      "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-11.3.0.tgz",
+      "integrity": "sha512-Z4XaCL6dUDHfP/jT25jJKMmtxvuwbkrD1vNSMFlo9lNLY2c5FHYSQgHPRZUjAB26TpDEoW9HCOgplrdbaPV/ew==",
      "license": "MIT",
      "dependencies": {
        "graceful-fs": "^4.2.0",
@@ -86,9 +84,9 @@
      "license": "ISC"
    },
    "node_modules/jsonfile": {
-      "version": "6.2.0",
-      "resolved": "https://registry.npmjs.org/jsonfile/-/jsonfile-6.2.0.tgz",
-      "integrity": "sha512-FGuPw30AdOIUTRMC2OMRtQV+jkVj2cfPqSeWXv1NEAJ1qZ5zb1X6z1mFhbfOB/iy3ssJCD+3KuZ8r8C3uVFlAg==",
+      "version": "6.1.0",
+      "resolved": "https://registry.npmjs.org/jsonfile/-/jsonfile-6.1.0.tgz",
+      "integrity": "sha512-5dgndWOriYSm5cnYaJNhalLNDKOqFwyDB/rr1E9ZsGciGvKPs8R2xYGCacuf3z6K1YKDz182fd+fY3cn3pMqXQ==",
      "license": "MIT",
      "dependencies": {
        "universalify": "^2.0.0"
@@ -101,7 +99,6 @@
      "version": "5.1.6",
      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-5.1.6.tgz",
      "integrity": "sha512-lKwV/1brpG6mBUFHtb7NUmtABCb2WZZmm2wNiOA5hAb8VdCS4B3dtMWyvcoViccwAW/COERjXLt0zP1zXUN26g==",
-      "dev": true,
      "license": "ISC",
      "dependencies": {
        "brace-expansion": "^2.0.1"
@@ -111,10 +108,9 @@
      }
    },
    "node_modules/semver": {
-      "version": "7.7.2",
-      "resolved": "https://registry.npmjs.org/semver/-/semver-7.7.2.tgz",
-      "integrity": "sha512-RF0Fw+rO5AMf9MAyaRXI4AV0Ulj5lMHqVxxdSgiVbixSCXoEmmX/jk0CuJw4+3SqroYO9VoUh+HcuJivvtJemA==",
-      "dev": true,
+      "version": "7.6.3",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-7.6.3.tgz",
+      "integrity": "sha512-oVekP1cKtI+CTDvHWYFUcMtsK/00wmAEfyqKfNdARm8u1wNVhSgaX7A8d4UuIlUI5e84iEwOhs7ZPYRmzU9U6A==",
      "license": "ISC",
      "bin": {
        "semver": "bin/semver.js"
@@ -124,9 +120,9 @@
      }
    },
    "node_modules/undici-types": {
-      "version": "6.21.0",
-      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.21.0.tgz",
-      "integrity": "sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==",
+      "version": "6.20.0",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.20.0.tgz",
+      "integrity": "sha512-Ny6QZ2Nju20vw1SRHe3d9jVu6gJ+4e3+MMpqu7pqE5HT6WsTSlce++GQmK5UXS8mzV8DSYHrQH+Xrf2jVcuKNg==",
      "dev": true,
      "license": "MIT"
    },
@@ -143,7 +139,6 @@
      "version": "8.2.0",
      "resolved": "https://registry.npmjs.org/vscode-jsonrpc/-/vscode-jsonrpc-8.2.0.tgz",
      "integrity": "sha512-C+r0eKJUIfiDIfwJhria30+TYWPtuHJXHtI7J0YlOmKAo7ogxP20T0zxB7HZQIFhIyvoBPwWskjxrvAtfjyZfA==",
-      "dev": true,
      "license": "MIT",
      "engines": {
        "node": ">=14.0.0"
@@ -153,7 +148,6 @@
      "version": "9.0.1",
      "resolved": "https://registry.npmjs.org/vscode-languageclient/-/vscode-languageclient-9.0.1.tgz",
      "integrity": "sha512-JZiimVdvimEuHh5olxhxkht09m3JzUGwggb5eRUkzzJhZ2KjCN0nh55VfiED9oez9DyF8/fz1g1iBV3h+0Z2EA==",
-      "dev": true,
      "license": "MIT",
      "dependencies": {
        "minimatch": "^5.1.0",
@@ -168,7 +162,6 @@
      "version": "3.17.5",
      "resolved": "https://registry.npmjs.org/vscode-languageserver-protocol/-/vscode-languageserver-protocol-3.17.5.tgz",
      "integrity": "sha512-mb1bvRJN8SVznADSGWM9u/b07H7Ecg0I3OgXDuLdn307rl/J3A9YD6/eYOssqhecL27hK1IPZAsaqh00i/Jljg==",
-      "dev": true,
      "license": "MIT",
      "dependencies": {
        "vscode-jsonrpc": "8.2.0",
@@ -179,7 +172,6 @@
      "version": "3.17.5",
      "resolved": "https://registry.npmjs.org/vscode-languageserver-types/-/vscode-languageserver-types-3.17.5.tgz",
      "integrity": "sha512-Ld1VelNuX9pdF39h2Hgaeb5hEZM2Z3jUrrMgWQAu82jMtZp7p3vJT3BzToKtZI7NgQssZje5o0zryOrhQvzQAg==",
-      "dev": true,
      "license": "MIT"
    }
  }
@@ -8,17 +8,11 @@
  },
  "dependencies": {
    "@vscode/python-extension": "^1.0.5",
-    "fs-extra": "11.3.1"
-  },
-  "devDependencies": {
-    "@types/node": "^22.18.0",
-    "@types/vscode": "^1.96.0",
+    "fs-extra": "^11.3.0",
    "vscode-languageclient": "^9.0.1"
  },
-  "scripts": {
-    "compile": "tsc -b",
-    "watch": "tsc -b -w",
-    "lint": "eslint",
-    "esbuild": "^0.25.0"
+  "devDependencies": {
+    "@types/node": "^22.10.5",
+    "@types/vscode": "^1.96.0"
  }
-}
+}
@@ -0,0 +1,14 @@
+import * as path from "path"
+
+const folderName = path.basename(__dirname)
+export const EXTENSION_ROOT_DIR =
+    folderName === "common"
+        ? path.dirname(path.dirname(path.dirname(__dirname)))
+        : path.dirname(__dirname)
+export const BUNDLED_PYTHON_SCRIPTS_DIR = path.join(EXTENSION_ROOT_DIR, "server")
+export const SERVER_SCRIPT_PATH = path.join(BUNDLED_PYTHON_SCRIPTS_DIR, "src", `lsp_server.py`)
+export const DEBUG_SERVER_SCRIPT_PATH = path.join(
+    BUNDLED_PYTHON_SCRIPTS_DIR,
+    "src",
+    `_debug_server.py`
+)
@@ -0,0 +1,86 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+/* eslint-disable @typescript-eslint/naming-convention */
+import { commands, Disposable, Event, EventEmitter, Uri } from "vscode"
+import { traceError, traceLog } from "./log/logging"
+import { PythonExtension, ResolvedEnvironment } from "@vscode/python-extension"
+
+export interface IInterpreterDetails {
+    path?: string[]
+    resource?: Uri
+}
+
+const onDidChangePythonInterpreterEvent = new EventEmitter<IInterpreterDetails>()
+export const onDidChangePythonInterpreter: Event<IInterpreterDetails> =
+    onDidChangePythonInterpreterEvent.event
+
+let _api: PythonExtension | undefined
+async function getPythonExtensionAPI(): Promise<PythonExtension | undefined> {
+    if (_api) {
+        return _api
+    }
+    _api = await PythonExtension.api()
+    return _api
+}
+
+export async function initializePython(disposables: Disposable[]): Promise<void> {
+    try {
+        const api = await getPythonExtensionAPI()
+
+        if (api) {
+            disposables.push(
+                api.environments.onDidChangeActiveEnvironmentPath((e) => {
+                    onDidChangePythonInterpreterEvent.fire({
+                        path: [e.path],
+                        resource: e.resource?.uri
+                    })
+                })
+            )
+
+            traceLog("Waiting for interpreter from python extension.")
+            onDidChangePythonInterpreterEvent.fire(await getInterpreterDetails())
+        }
+    } catch (error) {
+        traceError("Error initializing python: ", error)
+    }
+}
+
+export async function resolveInterpreter(
+    interpreter: string[]
+): Promise<ResolvedEnvironment | undefined> {
+    const api = await getPythonExtensionAPI()
+    return api?.environments.resolveEnvironment(interpreter[0])
+}
+
+export async function getInterpreterDetails(resource?: Uri): Promise<IInterpreterDetails> {
+    const api = await getPythonExtensionAPI()
+    const environment = await api?.environments.resolveEnvironment(
+        api?.environments.getActiveEnvironmentPath(resource)
+    )
+    if (environment?.executable.uri && checkVersion(environment)) {
+        return { path: [environment?.executable.uri.fsPath], resource }
+    }
+    return { path: undefined, resource }
+}
+
+export async function getDebuggerPath(): Promise<string | undefined> {
+    const api = await getPythonExtensionAPI()
+    return api?.debug.getDebuggerPackagePath()
+}
+
+export async function runPythonExtensionCommand(command: string, ...rest: any[]) {
+    await getPythonExtensionAPI()
+    return await commands.executeCommand(command, ...rest)
+}
+
+export function checkVersion(resolved: ResolvedEnvironment | undefined): boolean {
+    const version = resolved?.version
+    if (version?.major === 3 && version?.minor >= 11) {
+        return true
+    }
+    traceError(`Python version ${version?.major}.${version?.minor} is not supported.`)
+    traceError(`Selected python path: ${resolved?.executable.uri?.fsPath}`)
+    traceError("Supported versions are 3.11 and above.")
+    return false
+}
@@ -0,0 +1,131 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+import * as fsapi from "fs-extra"
+import { Disposable, env, LogOutputChannel } from "vscode"
+import { State } from "vscode-languageclient"
+import {
+    LanguageClient,
+    LanguageClientOptions,
+    RevealOutputChannelOn,
+    ServerOptions
+} from "vscode-languageclient/node"
+import { DEBUG_SERVER_SCRIPT_PATH, SERVER_SCRIPT_PATH } from "./constants"
+import { traceError, traceInfo, traceVerbose } from "./log/logging"
+import { getDebuggerPath } from "./python"
+import {
+    getExtensionSettings,
+    getGlobalSettings,
+    getWorkspaceSettings,
+    ISettings
+} from "./settings"
+import { getLSClientTraceLevel, getProjectRoot } from "./utilities"
+import { isVirtualWorkspace } from "./vscodeapi"
+
+export type IInitOptions = { settings: ISettings[]; globalSettings: ISettings }
+
+async function createServer(
+    settings: ISettings,
+    serverId: string,
+    serverName: string,
+    outputChannel: LogOutputChannel,
+    initializationOptions: IInitOptions
+): Promise<LanguageClient> {
+    const command = settings.interpreter[0]
+    const cwd = settings.cwd
+
+    // Set debugger path needed for debugging python code.
+    const newEnv = { ...process.env }
+    const debuggerPath = await getDebuggerPath()
+    const isDebugScript = await fsapi.pathExists(DEBUG_SERVER_SCRIPT_PATH)
+    if (newEnv.USE_DEBUGPY && debuggerPath) {
+        newEnv.DEBUGPY_PATH = debuggerPath
+    } else {
+        newEnv.USE_DEBUGPY = "False"
+    }
+
+    // Set import strategy
+    newEnv.LS_IMPORT_STRATEGY = settings.importStrategy
+
+    // Set notification type
+    newEnv.LS_SHOW_NOTIFICATION = settings.showNotifications
+
+    const args =
+        newEnv.USE_DEBUGPY === "False" || !isDebugScript
+            ? settings.interpreter.slice(1).concat([SERVER_SCRIPT_PATH])
+            : settings.interpreter.slice(1).concat([DEBUG_SERVER_SCRIPT_PATH])
+    traceInfo(`Server run command: ${[command, ...args].join(" ")}`)
+
+    const serverOptions: ServerOptions = {
+        command,
+        args,
+        options: { cwd, env: newEnv }
+    }
+
+    // Options to control the language client
+    const clientOptions: LanguageClientOptions = {
+        // Register the server for python documents
+        documentSelector: isVirtualWorkspace()
+            ? [{ language: "tcl" }]
+            : [
+                  { scheme: "file", language: "tcl" },
+                  { scheme: "untitled", language: "tcl" },
+                  { scheme: "vscode-notebook", language: "tcl" },
+                  { scheme: "vscode-notebook-cell", language: "tcl" }
+              ],
+        outputChannel: outputChannel,
+        traceOutputChannel: outputChannel,
+        revealOutputChannelOn: RevealOutputChannelOn.Never,
+        initializationOptions
+    }
+
+    return new LanguageClient(serverId, serverName, serverOptions, clientOptions)
+}
+
+let _disposables: Disposable[] = []
+export async function restartServer(
+    serverId: string,
+    serverName: string,
+    outputChannel: LogOutputChannel,
+    lsClient?: LanguageClient
+): Promise<LanguageClient | undefined> {
+    if (lsClient) {
+        traceInfo(`Server: Stop requested`)
+        await lsClient.stop()
+        _disposables.forEach((d) => d.dispose())
+        _disposables = []
+    }
+    const projectRoot = await getProjectRoot()
+    const workspaceSetting = await getWorkspaceSettings(serverId, projectRoot, true)
+
+    const newLSClient = await createServer(workspaceSetting, serverId, serverName, outputChannel, {
+        settings: await getExtensionSettings(serverId, true),
+        globalSettings: await getGlobalSettings(serverId, false)
+    })
+    traceInfo(`Server: Start requested.`)
+    _disposables.push(
+        newLSClient.onDidChangeState((e) => {
+            switch (e.newState) {
+                case State.Stopped:
+                    traceVerbose(`Server State: Stopped`)
+                    break
+                case State.Starting:
+                    traceVerbose(`Server State: Starting`)
+                    break
+                case State.Running:
+                    traceVerbose(`Server State: Running`)
+                    break
+            }
+        })
+    )
+    try {
+        await newLSClient.start()
+    } catch (ex) {
+        traceError(`Server: Start failed: ${ex}`)
+        return undefined
+    }
+
+    const level = getLSClientTraceLevel(outputChannel.logLevel, env.logLevel)
+    await newLSClient.setTrace(level)
+    return newLSClient
+}
@@ -0,0 +1,136 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+import {
+    ConfigurationChangeEvent,
+    ConfigurationScope,
+    WorkspaceConfiguration,
+    WorkspaceFolder
+} from "vscode"
+import { getInterpreterDetails } from "./python"
+import { getConfiguration, getWorkspaceFolders } from "./vscodeapi"
+
+export interface ISettings {
+    cwd: string
+    workspace: string
+    args: string[]
+    path: string[]
+    interpreter: string[]
+    importStrategy: string
+    showNotifications: string
+}
+
+export function getExtensionSettings(
+    namespace: string,
+    includeInterpreter?: boolean
+): Promise<ISettings[]> {
+    return Promise.all(
+        getWorkspaceFolders().map((w) => getWorkspaceSettings(namespace, w, includeInterpreter))
+    )
+}
+
+function resolveVariables(value: string[], workspace?: WorkspaceFolder): string[] {
+    const substitutions = new Map<string, string>()
+    const home = process.env.HOME || process.env.USERPROFILE
+    if (home) {
+        substitutions.set("${userHome}", home)
+    }
+    if (workspace) {
+        substitutions.set("${workspaceFolder}", workspace.uri.fsPath)
+    }
+    substitutions.set("${cwd}", process.cwd())
+    getWorkspaceFolders().forEach((w) => {
+        substitutions.set("${workspaceFolder:" + w.name + "}", w.uri.fsPath)
+    })
+
+    return value.map((s) => {
+        for (const [key, value] of substitutions) {
+            s = s.replace(key, value)
+        }
+        return s
+    })
+}
+
+export function getInterpreterFromSetting(namespace: string, scope?: ConfigurationScope) {
+    const config = getConfiguration(namespace, scope)
+    return config.get<string[]>("interpreter")
+}
+
+export async function getWorkspaceSettings(
+    namespace: string,
+    workspace: WorkspaceFolder,
+    includeInterpreter?: boolean
+): Promise<ISettings> {
+    const config = getConfiguration(namespace, workspace.uri)
+
+    let interpreter: string[] = []
+    if (includeInterpreter) {
+        interpreter = getInterpreterFromSetting(namespace, workspace) ?? []
+        if (interpreter.length === 0) {
+            interpreter = (await getInterpreterDetails(workspace.uri)).path ?? []
+        }
+    }
+
+    const workspaceSetting = {
+        cwd: workspace.uri.fsPath,
+        workspace: workspace.uri.toString(),
+        args: resolveVariables(config.get<string[]>(`args`) ?? [], workspace),
+        path: resolveVariables(config.get<string[]>(`path`) ?? [], workspace),
+        interpreter: resolveVariables(interpreter, workspace),
+        importStrategy: config.get<string>(`importStrategy`) ?? "useBundled",
+        showNotifications: config.get<string>(`showNotifications`) ?? "off",
+        formatter: config.get<boolean>(`formatter`) ?? true,
+        inlayHint: config.get<boolean>(`inlayHint`) ?? true
+    }
+    return workspaceSetting
+}
+
+function getGlobalValue<T>(config: WorkspaceConfiguration, key: string, defaultValue: T): T {
+    const inspect = config.inspect<T>(key)
+    return inspect?.globalValue ?? inspect?.defaultValue ?? defaultValue
+}
+
+export async function getGlobalSettings(
+    namespace: string,
+    includeInterpreter?: boolean
+): Promise<ISettings> {
+    const config = getConfiguration(namespace)
+
+    let interpreter: string[] = []
+    if (includeInterpreter) {
+        interpreter = getGlobalValue<string[]>(config, "interpreter", [])
+        if (interpreter === undefined || interpreter.length === 0) {
+            interpreter = (await getInterpreterDetails()).path ?? []
+        }
+    }
+
+    const setting = {
+        cwd: process.cwd(),
+        workspace: process.cwd(),
+        args: getGlobalValue<string[]>(config, "args", []),
+        path: getGlobalValue<string[]>(config, "path", []),
+        interpreter: interpreter,
+        importStrategy: getGlobalValue<string>(config, "importStrategy", "useBundled"),
+        showNotifications: getGlobalValue<string>(config, "showNotifications", "off"),
+        formatter: config.get<boolean>(`formatter`) ?? true,
+        inlayHint: config.get<boolean>(`inlayHint`) ?? true
+    }
+    return setting
+}
+
+export function checkIfConfigurationChanged(
+    e: ConfigurationChangeEvent,
+    namespace: string
+): boolean {
+    const settings = [
+        `${namespace}.args`,
+        `${namespace}.path`,
+        `${namespace}.interpreter`,
+        `${namespace}.importStrategy`,
+        `${namespace}.showNotifications`,
+        `${namespace}.formatter`,
+        `${namespace}.inlayHint`
+    ]
+    const changed = settings.map((s) => e.affectsConfiguration(s))
+    return changed.includes(true)
+}
@@ -0,0 +1,18 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+import * as path from "path"
+import * as fs from "fs-extra"
+import { EXTENSION_ROOT_DIR } from "./constants"
+
+export interface IServerInfo {
+    name: string
+    module: string
+}
+
+export function loadServerDefaults(): IServerInfo {
+    const packageJson = path.join(EXTENSION_ROOT_DIR, "package.json")
+    const content = fs.readFileSync(packageJson).toString()
+    const config = JSON.parse(content)
+    return config.serverInfo as IServerInfo
+}
@@ -0,0 +1,69 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+import * as fs from "fs-extra"
+import * as path from "path"
+import { LogLevel, Uri, WorkspaceFolder } from "vscode"
+import { Trace } from "vscode-jsonrpc/node"
+import { getWorkspaceFolders } from "./vscodeapi"
+
+function logLevelToTrace(logLevel: LogLevel): Trace {
+    switch (logLevel) {
+        case LogLevel.Error:
+        case LogLevel.Warning:
+        case LogLevel.Info:
+            return Trace.Messages
+
+        case LogLevel.Debug:
+        case LogLevel.Trace:
+            return Trace.Verbose
+
+        case LogLevel.Off:
+        default:
+            return Trace.Off
+    }
+}
+
+export function getLSClientTraceLevel(channelLogLevel: LogLevel, globalLogLevel: LogLevel): Trace {
+    if (channelLogLevel === LogLevel.Off) {
+        return logLevelToTrace(globalLogLevel)
+    }
+    if (globalLogLevel === LogLevel.Off) {
+        return logLevelToTrace(channelLogLevel)
+    }
+    const level = logLevelToTrace(
+        channelLogLevel <= globalLogLevel ? channelLogLevel : globalLogLevel
+    )
+    return level
+}
+
+export async function getProjectRoot(): Promise<WorkspaceFolder> {
+    const workspaces: readonly WorkspaceFolder[] = getWorkspaceFolders()
+    if (workspaces.length === 0) {
+        return {
+            uri: Uri.file(process.cwd()),
+            name: path.basename(process.cwd()),
+            index: 0
+        }
+    } else if (workspaces.length === 1) {
+        return workspaces[0]
+    } else {
+        let rootWorkspace = workspaces[0]
+        let root = undefined
+        for (const w of workspaces) {
+            if (await fs.pathExists(w.uri.fsPath)) {
+                root = w.uri.fsPath
+                rootWorkspace = w
+                break
+            }
+        }
+
+        for (const w of workspaces) {
+            if (root && root.length > w.uri.fsPath.length && (await fs.pathExists(w.uri.fsPath))) {
+                root = w.uri.fsPath
+                rootWorkspace = w
+            }
+        }
+        return rootWorkspace
+    }
+}
@@ -0,0 +1,52 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+/* eslint-disable @typescript-eslint/explicit-module-boundary-types */
+/* eslint-disable @typescript-eslint/no-explicit-any */
+import {
+    commands,
+    ConfigurationScope,
+    Disposable,
+    LogOutputChannel,
+    Uri,
+    window,
+    workspace,
+    WorkspaceConfiguration,
+    WorkspaceFolder
+} from "vscode"
+
+export function createOutputChannel(name: string): LogOutputChannel {
+    return window.createOutputChannel(name, { log: true })
+}
+
+export function getConfiguration(
+    config: string,
+    scope?: ConfigurationScope
+): WorkspaceConfiguration {
+    return workspace.getConfiguration(config, scope)
+}
+
+export function registerCommand(
+    command: string,
+    callback: (...args: any[]) => any,
+    thisArg?: any
+): Disposable {
+    return commands.registerCommand(command, callback, thisArg)
+}
+
+export const { onDidChangeConfiguration } = workspace
+
+export function isVirtualWorkspace(): boolean {
+    const isVirtual =
+        workspace.workspaceFolders &&
+        workspace.workspaceFolders.every((f) => f.uri.scheme !== "file")
+    return !!isVirtual
+}
+
+export function getWorkspaceFolders(): readonly WorkspaceFolder[] {
+    return workspace.workspaceFolders ?? []
+}
+
+export function getWorkspaceFolder(uri: Uri): WorkspaceFolder | undefined {
+    return workspace.getWorkspaceFolder(uri)
+}
@@ -3,7 +3,7 @@ import {
    LanguageClient,
    LanguageClientOptions,
    ServerOptions,
-    Executable
+    TransportKind
 } from "vscode-languageclient/node"
 import {
    formatCdlFile,
@@ -15,59 +15,119 @@ import {
    cdlDocumentSymbolProvider,
    defDocumentSymbolProvider
 } from "./common/handlers"
+import { registerLogger, traceError, traceLog, traceVerbose } from "./common/log/logging"
+import {
+    checkVersion,
+    getInterpreterDetails,
+    initializePython,
+    onDidChangePythonInterpreter,
+    resolveInterpreter
+} from "./common/python"
+import { restartServer } from "./common/server"
+import { checkIfConfigurationChanged, getInterpreterFromSetting } from "./common/settings"
+import { loadServerDefaults } from "./common/setup"
+import { getLSClientTraceLevel } from "./common/utilities"
+import { createOutputChannel, onDidChangeConfiguration, registerCommand } from "./common/vscodeapi"
+
+let client: LanguageClient | undefined

-let client: LanguageClient
-interface InitializationOptions {
-    perFileParser: Record<string, string>
-}
 export async function activate(context: vscode.ExtensionContext) {
-    // Allow overriding the server executable path via environment variable so
-    // the extension can attach to a debug-run server started externally.
-    // If `TCL_LSP_SERVER_PATH` is set, use that path; otherwise fall back to
-    // the packaged server inside the extension.
-    let serverCommand: string
-    const serverModule = vscode.Uri.joinPath(
-        context.extensionUri,
-        "server",
-        "target",
-        ...(process.platform === "win32"
-            ? ["x86_64-pc-windows-gnu", "release", "lsp-main.exe"]
-            : ["x86_64-unknown-linux-gnu", "release", "lsp-main"])
+    // This is required to get server name and module. This should be
+    // the first thing that we do in this extension.
+    const serverInfo = loadServerDefaults()
+    const serverName = serverInfo.name
+    const serverId = serverInfo.module
+
+    // Setup logging
+    const outputChannel = createOutputChannel(serverName)
+    context.subscriptions.push(outputChannel, registerLogger(outputChannel))
+
+    const changeLogLevel = async (c: vscode.LogLevel, g: vscode.LogLevel) => {
+        const level = getLSClientTraceLevel(c, g)
+        await client?.setTrace(level)
+    }
+
+    context.subscriptions.push(
+        outputChannel.onDidChangeLogLevel(async (e) => {
+            await changeLogLevel(e, vscode.env.logLevel)
+        }),
+        vscode.env.onDidChangeLogLevel(async (e) => {
+            await changeLogLevel(outputChannel.logLevel, e)
+        })
    )
-    serverCommand = serverModule.fsPath

-    const channel = vscode.window.createOutputChannel("TCL LSP Server", "log")
-    const run: Executable = {
-        command: serverCommand,
-        options: { env: process.env }
-    }
-    const serverOptions: ServerOptions = {
-        run,
-        debug: run
-    }
+    // Log Server information
+    traceLog(`Name: ${serverInfo.name}`)
+    traceLog(`Module: ${serverInfo.module}`)
+    traceVerbose(`Full Server Info: ${JSON.stringify(serverInfo)}`)

-    const initializationOptions: InitializationOptions = {
-        perFileParser: {
-            tcl: "tcl"
+    const runServerImpl = async () => {
+        const interpreter = getInterpreterFromSetting(serverId)
+        if (interpreter && interpreter.length > 0) {
+            if (checkVersion(await resolveInterpreter(interpreter))) {
+                traceVerbose(
+                    `Using interpreter from ${serverInfo.module}.interpreter: ${interpreter.join(" ")}`
+                )
+                client = await restartServer(serverId, serverName, outputChannel, client)
+            }
+            return
        }
+
+        const interpreterDetails = await getInterpreterDetails()
+        if (interpreterDetails.path) {
+            traceVerbose(
+                `Using interpreter from Python extension: ${interpreterDetails.path.join(" ")}`
+            )
+            client = await restartServer(serverId, serverName, outputChannel, client)
+            return
+        }
+
+        traceError(
+            "Python interpreter missing:\r\n" +
+                "[Option 1] Select python interpreter using the ms-python.python.\r\n" +
+                `[Option 2] Set an interpreter using "${serverId}.interpreter" setting.\r\n` +
+                "Please use Python 3.8 or greater."
+        )
    }

-    const clientOptions: LanguageClientOptions = {
-        documentSelector: [{ language: "tcl" }],
-        synchronize: {
-            fileEvents: vscode.workspace.createFileSystemWatcher("**/*.tcl")
-        },
-        outputChannel: channel,
-        initializationOptions
+    // Serialize server (re)starts. Overlapping triggers (interpreter change,
+    // config change, restart command, initial activation) would otherwise each
+    // read the stale module-level `client`, start a new server and leave the
+    // previous one running orphaned -> hints/hover shown multiple times.
+    let runServerQueue: Promise<void> = Promise.resolve()
+    const runServer = () => {
+        runServerQueue = runServerQueue.catch(() => undefined).then(() => runServerImpl())
+        return runServerQueue
    }

-    client = new LanguageClient("lspClient", "LSP Client", serverOptions, clientOptions)
+    context.subscriptions.push(
+        onDidChangePythonInterpreter(async () => {
+            await runServer()
+        }),
+        onDidChangeConfiguration(async (e: vscode.ConfigurationChangeEvent) => {
+            if (checkIfConfigurationChanged(e, serverId)) {
+                await runServer()
+            }
+        }),
+        registerCommand(`${serverId}.restart`, async () => {
+            await runServer()
+        })
+    )

-    try {
-        await client.start()
-    } catch (error) {
-        client.error(`Start failed`, error, "force")
-    }
+    setImmediate(async () => {
+        const interpreter = getInterpreterFromSetting(serverId)
+        if (interpreter === undefined || interpreter.length === 0) {
+            traceLog(`Python extension loading`)
+            await initializePython(context.subscriptions)
+            traceLog(`Python extension loaded`)
+        } else {
+            await runServer()
+        }
+    })
+
+    // Folding ranges for TCL are provided by the language server
+    // (folding_range_provider in lsp_server.py). No client-side provider here to
+    // avoid duplicate folding regions.

    //
    const formatCdlProvider = vscode.languages.registerDocumentFormattingEditProvider(
@@ -161,26 +221,27 @@ export async function activate(context: vscode.ExtensionContext) {
    context.subscriptions.push(diagnosticCollectionCdl, diagnosticCollectionDef)

    // Check if the first line of the CDL file contains "MACHINE"
-    vscode.workspace.onDidOpenTextDocument((document) => {
-        if (document.languageId === "cdl" || document.languageId === "def") {
-            if (document.languageId === "cdl") {
-                diagnosticCollectionCdl.set(document.uri, diagnosticHandler(document))
-            } else if (document.languageId === "def") {
-                diagnosticCollectionDef.set(document.uri, diagnosticHandler(document))
+    context.subscriptions.push(
+        vscode.workspace.onDidOpenTextDocument((document) => {
+            if (document.languageId === "cdl" || document.languageId === "def") {
+                if (document.languageId === "cdl") {
+                    diagnosticCollectionCdl.set(document.uri, diagnosticHandler(document))
+                } else if (document.languageId === "def") {
+                    diagnosticCollectionDef.set(document.uri, diagnosticHandler(document))
+                }
            }
-        }
-    })
-
-    vscode.workspace.onDidChangeTextDocument((event) => {
-        const document = event.document
-        if (document.languageId === "cdl" || document.languageId === "def") {
-            if (document.languageId === "cdl") {
-                diagnosticCollectionCdl.set(document.uri, diagnosticHandler(document))
-            } else if (document.languageId === "def") {
-                diagnosticCollectionDef.set(document.uri, diagnosticHandler(document))
+        }),
+        vscode.workspace.onDidChangeTextDocument((event) => {
+            const document = event.document
+            if (document.languageId === "cdl" || document.languageId === "def") {
+                if (document.languageId === "cdl") {
+                    diagnosticCollectionCdl.set(document.uri, diagnosticHandler(document))
+                } else if (document.languageId === "def") {
+                    diagnosticCollectionDef.set(document.uri, diagnosticHandler(document))
+                }
            }
-        }
-    })
+        })
+    )
 }

 export function deactivate(): Thenable<void> | undefined {
@@ -1,21 +1,12 @@
 {
    "compilerOptions": {
-        "rootDir": "./src",
-        "skipLibCheck": true,
-        "lib": ["ES2024", "webworker"],
-        "types": ["vscode"],
-        "module": "Node16",
-        "moduleResolution": "Node16",
+        "module": "commonjs",
+        "target": "es2019",
+        "lib": ["ES2019"],
        "outDir": "./out",
-        "strict": true,
-        "noImplicitAny": true,
-        "noImplicitReturns": true,
-        "noImplicitThis": true,
-        "declaration": true,
-        "stripInternal": true,
-        "sourceMap": true,
-        "declarationMap": true,
-        "noUnusedLocals": false,
-        "noUnusedParameters": false
-    }
+        "rootDir": "src",
+        "sourceMap": true
+    },
+    "include": ["src"],
+    "exclude": ["node_modules", ".vscode-test"]
 }
@@ -1 +0,0 @@
-{"root":["./src/extension.ts","./src/common/handlers.ts","./src/common/log/logging.ts"],"version":"5.7.2"}
@@ -1,28 +1,35 @@
 {
-  "comments": {
-    // symbol used for single line comment. Remove this entry if your language does not support line comments
-    "lineComment": "#"
-  },
-  // symbols used as brackets
-  "brackets": [
-    ["{", "}"],
-    ["[", "]"],
-    ["(", ")"]
-  ],
-  // symbols that are auto closed when typing
-  "autoClosingPairs": [
-    ["{", "}"],
-    ["[", "]"],
-    ["(", ")"],
-    ["\"", "\""],
-    ["'", "'"]
-  ],
-  // symbols that can be used to surround a selection
-  "surroundingPairs": [
-    ["{", "}"],
-    ["[", "]"],
-    ["(", ")"],
-    ["\"", "\""],
-    ["'", "'"]
-  ]
+    "comments": {
+        // symbol used for single line comment. Remove this entry if your language does not support line comments
+        "lineComment": "#"
+    },
+    "indentationRules": {
+        // Ignore pure comment lines so they don't terminate folds inside Tcl brace blocks.
+        "unIndentedLinePattern": "^\\s*#.*$",
+        // Opening braces on their own line are common in NX Tcl.
+        "increaseIndentPattern": "^((?!#).)*(\\{[^}\"']*)$",
+        "decreaseIndentPattern": "^\\s*[\\}\\]\\)].*$"
+    },
+    // symbols used as brackets
+    "brackets": [
+        ["{", "}"],
+        ["[", "]"],
+        ["(", ")"]
+    ],
+    // symbols that are auto closed when typing
+    "autoClosingPairs": [
+        ["{", "}"],
+        ["[", "]"],
+        ["(", ")"],
+        ["\"", "\""],
+        ["'", "'"]
+    ],
+    // symbols that can be used to surround a selection
+    "surroundingPairs": [
+        ["{", "}"],
+        ["[", "]"],
+        ["(", ")"],
+        ["\"", "\""],
+        ["'", "'"]
+    ]
 }
@@ -1,12 +1,12 @@
 {
  "name": "nx-post-support",
-  "version": "0.3.0",
+  "version": "2025.9.200",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "nx-post-support",
-      "version": "0.3.0",
+      "version": "2025.9.200",
      "devDependencies": {
        "@types/vscode": "^1.96.0",
        "@vscode/vsce": "^3.2.1",
@@ -2,9 +2,12 @@
  "name": "nx-post-support",
  "displayName": "NX Postprocessor Support",
  "description": "VS Code extension for NX CAM postprocessor development with syntax highlighting, formatting, linting, and auto-completion for CDL, TCL, and DEF files",
-  "version": "2025.9.100",
+  "version": "2026.6.201",
  "publisher": "Christoph",
  "icon": "images/nx-1.png",
+  "extensionDependencies": [
+    "ms-python.python"
+  ],
  "serverInfo": {
    "name": "NX Postprocessor Support",
    "module": "nx-post-support"
@@ -13,7 +16,7 @@
    "type": "git",
    "url": "https://git.cbsk-tech.de/Christoph/nx_post_support.git"
  },
-  "main": "./client/out/extension",
+  "main": "./dist/extension.js",
  "keywords": [
    "cdl",
    "NX CDL",
@@ -120,12 +123,9 @@
    }
  },
  "scripts": {
-    "postinstall": "cd client && npm install && cd ..",
-    "vscode:prepublish": "npm run build",
-    "debug": "cd client && npm run compile",
-    "build": "cd client && npm run compile && cd ../server && npm run build && cd ..",
-    "lint": "cd client && npm run lint && cd ..",
-    "esbuild": "node ./bin/esbuild.js"
+    "compile": "node esbuild.js --production",
+    "watch": "node esbuild.js --watch",
+    "package": "node esbuild.js --production"
  },
  "devDependencies": {
    "@types/vscode": "^1.96.0",
@@ -135,4 +135,4 @@
    "prettier": "^3.4.2",
    "typescript": "^5.7.2"
  }
-}
+}
@@ -1,843 +0,0 @@
-# This file is automatically @generated by Cargo.
-# It is not intended for manual editing.
-version = 4
-
-[[package]]
-name = "aho-corasick"
-version = "1.1.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e60d3430d3a69478ad0993f19238d2df97c507009a52b3c10addcd7f6bcb916"
-dependencies = [
- "memchr",
-]
-
-[[package]]
-name = "analysis"
-version = "0.1.0"
-dependencies = [
- "anyhow",
- "lsp-types",
- "serde",
- "serde_json",
- "tree-sitter",
- "tree-sitter-tcl",
-]
-
-[[package]]
-name = "analysis-tests"
-version = "0.1.0"
-dependencies = [
- "analysis",
- "tree-sitter",
- "tree-sitter-tcl",
-]
-
-[[package]]
-name = "anstream"
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- "windows_i686_msvc",
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-dependencies = [
- "displaydoc",
- "yoke",
- "zerofrom",
-]
-
-[[package]]
-name = "zerovec"
-version = "0.11.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e7aa2bd55086f1ab526693ecbe444205da57e25f4489879da80635a46d90e73b"
-dependencies = [
- "yoke",
- "zerofrom",
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-name = "zerovec-derive"
-version = "0.11.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
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-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
@@ -1,25 +0,0 @@
-[workspace]
-members = [
-  "crates/lsp-main",
-  "crates/text",
-  "crates/analysis",
-  "crates/features",
-  "tests/analysis-tests",
-]
-resolver = "2"
-
-[workspace.package]
-edition = "2021"
-resolver = "2"
-
-[workspace.dependencies]
-anyhow = "1"
-env_logger = "0.11"
-log = "0.4.28"
-lsp-server = "0.7"
-lsp-types = "0.97"
-serde = { version = "1", features = ["derive"] }
-serde_json = "1"
-tree-sitter = "0.25.8"
-tree-sitter-tcl = { git = "https://github.com/tree-sitter-grammars/tree-sitter-tcl" }
-url = "2"
@@ -1,13 +0,0 @@
-[package]
-name = "analysis"
-version = "0.1.0"
-edition = "2021"
-
-[dependencies]
-anyhow = { workspace = true }
-lsp-types = { workspace = true }
-tree-sitter = { workspace = true }
-tree-sitter-tcl = { workspace = true }
-serde = { workspace = true }
-serde_json = { workspace = true }
-
@@ -1,22 +0,0 @@
-use tree_sitter::Parser;
-use analysis::collect_procs;
-
-fn main() {
-    let src = r#"namespace eval foo {
-  proc bar {x y} { return $x }
-}
-proc top {} {}
-"#;
-    let mut parser = Parser::new();
-    parser
-        .set_language(&tree_sitter_tcl::LANGUAGE.into())
-        .expect("load tcl grammar");
-    let tree = parser.parse(src, None).expect("parse");
-    println!("tree: {}", tree.root_node().to_sexp());
-    let procs = collect_procs(&tree, src);
-    println!("found {} procs via collect_procs", procs.len());
-    for p in procs {
-        println!("- {} {:?}", p.name, p.params);
-    }
-}
-
@@ -1,99 +0,0 @@
-use serde::{ Deserialize, Serialize };
-use std::collections::HashMap;
-use tree_sitter::{ Node, Tree };
-use lsp_types as lsp;
-
-#[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct ProcDef {
-    pub name: String,
-    pub params: Vec<String>,
-    pub byte_start: usize,
-    pub byte_end: usize,
-}
-
-#[derive(Default)]
-pub struct ProcIndex {
-    by_uri: HashMap<lsp::Uri, Vec<ProcDef>>,
-}
-
-impl ProcIndex {
-    pub fn insert(&mut self, uri: lsp::Uri, procs: Vec<ProcDef>) {
-        self.by_uri.insert(uri, procs);
-    }
-    pub fn get(&self, uri: &lsp::Uri) -> Option<&[ProcDef]> {
-        self.by_uri.get(uri).map(|v| v.as_slice())
-    }
-    pub fn remove(&mut self, uri: &lsp::Uri) {
-        self.by_uri.remove(uri);
-    }
-}
-
-pub fn collect_procs(tree: &Tree, source: &str) -> Vec<ProcDef> {
-    let root = tree.root_node();
-    let mut out = Vec::new();
-    collect_from_node(root, source.as_bytes(), &mut out);
-    out
-}
-
-fn collect_from_node(node: Node, src: &[u8], out: &mut Vec<ProcDef>) {
-    let mut stack = vec![node];
-    let mut cursor = node.walk();
-
-    while let Some(n) = stack.pop() {
-        if n.kind() == "command" {
-            if let Some(p) = try_extract_proc(n, src) {
-                out.push(p);
-            }
-        }
-        let mut it = n.children(&mut cursor);
-        while let Some(c) = it.next() {
-            stack.push(c);
-        }
-    }
-}
-
-fn try_extract_proc(cmd: Node, src: &[u8]) -> Option<ProcDef> {
-    // Gather word-like named children
-    let mut cursor = cmd.walk();
-    let mut words: Vec<(Node, String)> = Vec::new();
-    for ch in cmd.named_children(&mut cursor) {
-        match ch.kind() {
-            "word" | "braced_word" | "quoted_word" => {
-                if let Ok(t) = ch.utf8_text(src) {
-                    words.push((ch, t.to_string()));
-                }
-            }
-            _ => {}
-        }
-    }
-    if words.len() < 2 {
-        return None;
-    }
-    if words[0].1 != "proc" {
-        return None;
-    }
-
-    let name = words[1].1.trim().to_string();
-    let params = if words.len() >= 3 { parse_params(&words[2].0, &words[2].1) } else { vec![] };
-
-    Some(ProcDef {
-        name,
-        params,
-        byte_start: cmd.start_byte(),
-        byte_end: cmd.end_byte(),
-    })
-}
-
-fn parse_params(node: &Node, text: &str) -> Vec<String> {
-    // naive split; good enough for a starter
-    let is_braced =
-        node.kind() == "braced_word" &&
-        text.starts_with('{') &&
-        text.ends_with('}') &&
-        text.len() >= 2;
-    let inner = if is_braced { &text[1..text.len() - 1] } else { text };
-    inner
-        .split_whitespace()
-        .map(|s| s.to_string())
-        .collect()
-}
@@ -1,11 +0,0 @@
-[package]
-name = "features"
-version = "0.1.0"
-edition = "2021"
-
-[dependencies]
-anyhow = { workspace = true }
-lsp-types = { workspace = true }
-analysis = { path = "../analysis" }
-text = { path = "../text" }
-url = { workspace = true }
@@ -1,31 +0,0 @@
-use anyhow::Result;
-use analysis::ProcIndex;
-use lsp_types as lsp;
-use text::DocumentStore;
-
-pub fn completion(
-    docs: &DocumentStore,
-    index: &ProcIndex,
-    params: &lsp::CompletionParams
-) -> Result<Option<lsp::CompletionResponse>> {
-    let uri = &params.text_document_position.text_document.uri;
-    let Some(_doc) = docs.get(uri) else {
-        return Ok(None);
-    };
-    let Some(procs) = index.get(uri) else {
-        return Ok(None);
-    };
-
-    let items: Vec<lsp::CompletionItem> = procs
-        .iter()
-        .map(|p| lsp::CompletionItem {
-            label: p.name.clone(),
-            kind: Some(lsp::CompletionItemKind::FUNCTION),
-            detail: Some(format!("proc {}", p.params.join(" "))),
-            insert_text: Some(p.name.clone()),
-            ..Default::default()
-        })
-        .collect();
-
-    Ok(Some(lsp::CompletionResponse::Array(items)))
-}
@@ -1,33 +0,0 @@
-use anyhow::Result;
-use analysis::ProcIndex;
-use lsp_types as lsp;
-use text::DocumentStore;
-
-pub fn definition(
-    docs: &DocumentStore,
-    index: &ProcIndex,
-    params: &lsp::GotoDefinitionParams
-) -> Result<Option<lsp::GotoDefinitionResponse>> {
-    let uri = &params.text_document_position_params.text_document.uri;
-    let pos = params.text_document_position_params.position;
-    let Some(doc) = docs.get(uri) else {
-        return Ok(None);
-    };
-    let Some((word, _range)) = doc.word_under_position(pos) else {
-        return Ok(None);
-    };
-
-    let Some(procs) = index.get(uri) else {
-        return Ok(None);
-    };
-
-    if let Some(p) = procs.iter().find(|p| p.name == word) {
-        let loc = lsp::Location {
-            uri: uri.clone(),
-            range: doc.byte_range_to_lsp_range(p.byte_start, p.byte_end),
-        };
-        return Ok(Some(lsp::GotoDefinitionResponse::Scalar(loc)));
-    }
-
-    Ok(None)
-}
@@ -1,34 +0,0 @@
-use anyhow::Result;
-use analysis::ProcIndex;
-use lsp_types as lsp;
-use text::DocumentStore;
-
-pub fn document_symbol(
-    docs: &DocumentStore,
-    index: &ProcIndex,
-    uri: &lsp::Uri
-) -> Result<Option<lsp::DocumentSymbolResponse>> {
-    let Some(doc) = docs.get(uri) else {
-        return Ok(None);
-    };
-    let Some(procs) = index.get(uri) else {
-        return Ok(None);
-    };
-
-    let mut symbols = Vec::new();
-    for p in procs {
-        let range = doc.byte_range_to_lsp_range(p.byte_start, p.byte_end);
-        symbols.push(lsp::DocumentSymbol {
-            name: p.name.clone(),
-            detail: Some(format!("proc {}", p.params.join(" "))),
-            kind: lsp::SymbolKind::FUNCTION,
-            range,
-            selection_range: range,
-            children: None,
-            tags: None,
-            deprecated: None,
-        });
-    }
-
-    Ok(Some(lsp::DocumentSymbolResponse::Nested(symbols)))
-}
@@ -1,7 +0,0 @@
-mod document_symbol;
-mod definition;
-mod completion;
-
-pub use document_symbol::document_symbol;
-pub use definition::definition;
-pub use completion::completion;
@@ -1,16 +0,0 @@
-[package]
-name = "lsp-main"
-version = "0.1.0"
-edition = "2021"
-
-[dependencies]
-anyhow = { workspace = true }
-env_logger = { workspace = true }
-log = { workspace = true }
-lsp-server = { workspace = true }
-lsp-types = { workspace = true }
-serde = { workspace = true }
-serde_json = { workspace = true }
-analysis = { path = "../analysis" }
-features = { path = "../features" }
-text = { path = "../text" }
@@ -1,13 +0,0 @@
-use anyhow::Result;
-use env_logger::Env;
-use lsp_server::Connection;
-
-mod server;
-
-fn main() -> Result<()> {
-    env_logger::Builder::from_env(Env::default().default_filter_or("info")).init();
-    let (connection, io_threads) = Connection::stdio();
-    server::Server::new(connection).run()?;
-    io_threads.join()?;
-    Ok(())
-}
@@ -1,177 +0,0 @@
-use anyhow::Result;
-use log;
-use lsp_server::{ Connection, Message, Response };
-use lsp_server::Notification as ServerNotification;
-use lsp_server::Request as ServerRequest;
-use lsp_types as lsp;
-use lsp_types::notification::{
-    DidChangeTextDocument,
-    DidCloseTextDocument,
-    DidOpenTextDocument,
-    LogMessage,
-    Notification as LspNotification,
-};
-use lsp_types::request::{
-    Completion,
-    DocumentSymbolRequest,
-    GotoDefinition,
-    Request as LspRequest,
-};
-use serde_json::Value;
-
-use analysis::{ collect_procs, ProcIndex };
-use features::{ completion, definition, document_symbol };
-use text::DocumentStore;
-
-pub struct Server {
-    conn: Connection,
-    docs: DocumentStore,
-    procs: ProcIndex,
-}
-
-impl Server {
-    pub fn new(conn: Connection) -> Self {
-        Self {
-            conn,
-            docs: DocumentStore::default(),
-            procs: ProcIndex::default(),
-        }
-    }
-
-    pub fn run(mut self) -> Result<()> {
-        // Initialize handshake
-        let (id, _params) = self.conn.initialize_start()?;
-        let result = lsp::InitializeResult {
-            capabilities: server_capabilities(),
-            server_info: Some(lsp::ServerInfo {
-                name: "tcl-lsp".into(),
-                version: Some(env!("CARGO_PKG_VERSION").into()),
-            }),
-        };
-        self.conn.initialize_finish(id, serde_json::to_value(result)?)?;
-
-        let _ = self.log("tcl-lsp ready");
-
-        let receiver = self.conn.receiver.clone();
-
-        // main loop
-        for msg in receiver.iter() {
-            match msg {
-                lsp_server::Message::Request(req) => {
-                    if self.conn.handle_shutdown(&req)? {
-                        break;
-                    }
-                    if let Err(e) = self.on_request(req) {
-                        log::error!("request error: {e:#}");
-                    }
-                }
-                lsp_server::Message::Notification(n) => {
-                    if let Err(e) = self.on_notification(n) {
-                        log::error!("notification error: {e:#}");
-                    }
-                }
-                lsp_server::Message::Response(_) => {}
-            }
-        }
-
-        let _ = self.log("tcl-lsp stopped");
-        Ok(())
-    }
-
-    fn on_notification(&mut self, n: ServerNotification) -> Result<()> {
-        match n.method.as_str() {
-            DidOpenTextDocument::METHOD => {
-                let params: lsp::DidOpenTextDocumentParams = serde_json::from_value(n.params)?;
-                let uri = params.text_document.uri.clone();
-                self.docs.open(params.text_document)?;
-                self.reindex(&uri)?;
-                self.log(&format!("Opened {:?}", uri))?;
-            }
-            DidChangeTextDocument::METHOD => {
-                let params: lsp::DidChangeTextDocumentParams = serde_json::from_value(n.params)?;
-                let uri = params.text_document.uri.clone();
-                // FULL sync: we expect one change with whole text
-                self.docs.apply_full_change(&uri, &params.content_changes)?;
-                self.reindex(&uri)?;
-            }
-            DidCloseTextDocument::METHOD => {
-                let params: lsp::DidCloseTextDocumentParams = serde_json::from_value(n.params)?;
-                self.procs.remove(&params.text_document.uri);
-                self.docs.close(&params.text_document.uri);
-            }
-            _ => {}
-        }
-        Ok(())
-    }
-
-    fn on_request(&mut self, req: ServerRequest) -> Result<()> {
-        match req.method.as_str() {
-            DocumentSymbolRequest::METHOD => {
-                let params: lsp::DocumentSymbolParams = serde_json::from_value(req.params)?;
-                let uri = params.text_document.uri;
-                let result = document_symbol(&self.docs, &self.procs, &uri)?;
-                send_ok(&self.conn, req.id, result)?;
-            }
-            GotoDefinition::METHOD => {
-                let params: lsp::GotoDefinitionParams = serde_json::from_value(req.params)?;
-                let result = definition(&self.docs, &self.procs, &params)?;
-                send_ok(&self.conn, req.id, result)?;
-            }
-            Completion::METHOD => {
-                let params: lsp::CompletionParams = serde_json::from_value(req.params)?;
-                let _ = self.log("Completion");
-                let result = completion(&self.docs, &self.procs, &params)?;
-                send_ok(&self.conn, req.id, result)?;
-            }
-            other => {
-                let resp = Response::new_err(
-                    req.id,
-                    lsp::error_codes::REQUEST_FAILED as i32,
-                    format!("Unknown method: {other}")
-                );
-                self.conn.sender.send(Message::Response(resp))?;
-            }
-        }
-        Ok(())
-    }
-
-    fn reindex(&mut self, uri: &lsp::Uri) -> Result<()> {
-        if let Some(doc) = self.docs.get(uri) {
-            if let Some(tree) = doc.tree() {
-                let text = doc.text();
-                let procs = collect_procs(tree, &text);
-                self.procs.insert(uri.clone(), procs);
-            }
-        }
-        Ok(())
-    }
-
-    fn log(&self, message: &str) -> Result<()> {
-        let notif = LogMessage::METHOD.to_string();
-        let params = lsp::LogMessageParams {
-            typ: lsp::MessageType::INFO,
-            message: message.to_string(),
-        };
-        self.conn.sender.send(Message::Notification(ServerNotification::new(notif, params)))?;
-        Ok(())
-    }
-}
-
-fn send_ok<T: serde::Serialize>(
-    conn: &Connection,
-    id: lsp_server::RequestId,
-    result: T
-) -> Result<()> {
-    let v: Value = serde_json::to_value(result)?;
-    conn.sender.send(Message::Response(Response::new_ok(id, v)))?;
-    Ok(())
-}
-
-fn server_capabilities() -> lsp::ServerCapabilities {
-    lsp::ServerCapabilities {
-        completion_provider: Some(lsp::CompletionOptions {
-            ..Default::default()
-        }),
-        ..Default::default()
-    }
-}
@@ -1,11 +0,0 @@
-[package]
-name = "text"
-version = "0.1.0"
-edition = "2021"
-
-[dependencies]
-anyhow = { workspace = true }
-lsp-types = { workspace = true }
-tree-sitter = { workspace = true }
-tree-sitter-tcl = { workspace = true }
-url = { workspace = true }
@@ -1,179 +0,0 @@
-use anyhow::{ bail, Context, Result };
-use lsp_types as lsp;
-use std::collections::HashMap;
-use tree_sitter::{ Parser, Tree };
-
-#[derive(Default)]
-pub struct DocumentStore {
-    docs: HashMap<lsp::Uri, Document>,
-}
-
-impl DocumentStore {
-    pub fn open(&mut self, item: lsp::TextDocumentItem) -> Result<()> {
-        let uri = item.uri.clone();
-        let doc = Document::open(item.text)?;
-        self.docs.insert(uri, doc);
-        Ok(())
-    }
-
-    pub fn apply_full_change(
-        &mut self,
-        uri: &lsp::Uri,
-        changes: &[lsp::TextDocumentContentChangeEvent]
-    ) -> Result<()> {
-        let Some(doc) = self.docs.get_mut(uri) else {
-            bail!("no such document: {:?}", uri);
-        };
-        // FULL sync: assume single change with whole text
-        let new_text = changes.last().context("empty changes for full sync")?.text.clone();
-        doc.reparse(&new_text)?;
-        Ok(())
-    }
-
-    pub fn close(&mut self, uri: &lsp::Uri) {
-        self.docs.remove(uri);
-    }
-
-    pub fn get(&self, uri: &lsp::Uri) -> Option<&Document> {
-        self.docs.get(uri)
-    }
-}
-
-pub struct Document {
-    text: String,
-    parser: Parser,
-    tree: Option<Tree>,
-}
-
-impl Document {
-    pub fn open(text: String) -> Result<Self> {
-        let mut parser = Parser::new();
-        parser.set_language(&tree_sitter_tcl::LANGUAGE.into()).context("load tcl grammar")?;
-        let tree = parser.parse(&text, None);
-        Ok(Self { text, parser, tree })
-    }
-
-    pub fn reparse(&mut self, new_text: &str) -> Result<()> {
-        self.text.clear();
-        self.text.push_str(new_text);
-        self.tree = self.parser.parse(&self.text, None);
-        Ok(())
-    }
-
-    pub fn text(&self) -> String {
-        self.text.clone()
-    }
-
-    pub fn tree(&self) -> Option<&Tree> {
-        self.tree.as_ref()
-    }
-
-    /// Convert a byte range (UTF-8) into an LSP Range (UTF-16 columns).
-    pub fn byte_range_to_lsp_range(&self, start: usize, end: usize) -> lsp::Range {
-        fn byte_to_line_col_utf16(s: &str, byte: usize) -> (u32, u32) {
-            let clamped = byte.min(s.len());
-            let slice = &s[..clamped];
-            let mut line = 0u32;
-            let mut col_u16 = 0u32;
-            let mut last_nl = 0usize;
-
-            for (i, b) in slice.bytes().enumerate() {
-                if b == b'\n' {
-                    line += 1;
-                    last_nl = i + 1;
-                }
-            }
-            // compute utf16 col from last newline to clamped
-            let seg = &slice[last_nl..];
-            col_u16 = seg.encode_utf16().count() as u32;
-            (line, col_u16)
-        }
-
-        let (sl, sc) = byte_to_line_col_utf16(&self.text, start);
-        let (el, ec) = byte_to_line_col_utf16(&self.text, end);
-        lsp::Range {
-            start: lsp::Position {
-                line: sl,
-                character: sc,
-            },
-            end: lsp::Position {
-                line: el,
-                character: ec,
-            },
-        }
-    }
-
-    /// Get the UTF-8 byte offset of the "word" under a UTF-16 position (very naive).
-    pub fn word_under_position(
-        &self,
-        pos: lsp::Position
-    ) -> Option<(String, std::ops::Range<usize>)> {
-        // Convert UTF-16 (LSP) position -> UTF-8 byte offset in self.text
-        fn line_col_utf16_to_byte(s: &str, line: u32, col_u16: u32) -> usize {
-            // Find start byte of the requested line
-            let mut cur_line: u32 = 0;
-            let mut line_start_byte: usize = 0;
-
-            if line == 0 {
-                line_start_byte = 0;
-            } else {
-                for (i, b) in s.bytes().enumerate() {
-                    if b == b'\n' {
-                        cur_line += 1;
-                        if cur_line == line {
-                            line_start_byte = i + 1;
-                            break;
-                        }
-                    }
-                }
-                // If line beyond EOF, clamp to end
-                if cur_line < line {
-                    return s.len();
-                }
-            }
-
-            // Advance by UTF-16 code units from line_start_byte
-            let mut remaining = col_u16 as isize;
-            let tail = &s[line_start_byte..];
-            for (off, ch) in tail.char_indices() {
-                if remaining <= 0 {
-                    return line_start_byte + off;
-                }
-                // subtract the number of UTF-16 code units this char occupies (1 for BMP, 2 for surrogates)
-                let mut buf = [0u16; 2];
-                remaining -= ch.encode_utf16(&mut buf).len() as isize;
-            }
-            // If column beyond EOL, clamp to end
-            s.len()
-        }
-
-        let bytes = self.text.as_bytes();
-        let byte = line_col_utf16_to_byte(&self.text, pos.line, pos.character);
-        if byte > self.text.len() {
-            return None;
-        }
-
-        // Expand to simple Tcl-ish identifier characters: letters/digits/_ : / . -
-        fn is_ident(c: u8) -> bool {
-            c.is_ascii_alphanumeric() || matches!(c, b'_' | b':' | b'/' | b'.' | b'-')
-        }
-
-        // Walk backward to start
-        let mut start = byte;
-        while start > 0 && is_ident(bytes[start - 1]) {
-            start -= 1;
-        }
-        // Walk forward to end
-        let mut end = byte;
-        while end < bytes.len() && is_ident(bytes[end]) {
-            end += 1;
-        }
-
-        if start >= end {
-            return None;
-        }
-
-        let text = self.text[start..end].to_string();
-        Some((text, start..end)) // <-- no semicolon here, this is the tail expression
-    }
-}
@@ -0,0 +1,104 @@
+# SPDX-License-Identifier: MIT
+
+"""
+Classes Without Boilerplate
+"""
+
+from functools import partial
+from typing import Callable, Literal, Protocol
+
+from . import converters, exceptions, filters, setters, validators
+from ._cmp import cmp_using
+from ._config import get_run_validators, set_run_validators
+from ._funcs import asdict, assoc, astuple, has, resolve_types
+from ._make import (
+    NOTHING,
+    Attribute,
+    Converter,
+    Factory,
+    _Nothing,
+    attrib,
+    attrs,
+    evolve,
+    fields,
+    fields_dict,
+    make_class,
+    validate,
+)
+from ._next_gen import define, field, frozen, mutable
+from ._version_info import VersionInfo
+
+
+s = attributes = attrs
+ib = attr = attrib
+dataclass = partial(attrs, auto_attribs=True)  # happy Easter ;)
+
+
+class AttrsInstance(Protocol):
+    pass
+
+
+NothingType = Literal[_Nothing.NOTHING]
+
+__all__ = [
+    "NOTHING",
+    "Attribute",
+    "AttrsInstance",
+    "Converter",
+    "Factory",
+    "NothingType",
+    "asdict",
+    "assoc",
+    "astuple",
+    "attr",
+    "attrib",
+    "attributes",
+    "attrs",
+    "cmp_using",
+    "converters",
+    "define",
+    "evolve",
+    "exceptions",
+    "field",
+    "fields",
+    "fields_dict",
+    "filters",
+    "frozen",
+    "get_run_validators",
+    "has",
+    "ib",
+    "make_class",
+    "mutable",
+    "resolve_types",
+    "s",
+    "set_run_validators",
+    "setters",
+    "validate",
+    "validators",
+]
+
+
+def _make_getattr(mod_name: str) -> Callable:
+    """
+    Create a metadata proxy for packaging information that uses *mod_name* in
+    its warnings and errors.
+    """
+
+    def __getattr__(name: str) -> str:
+        if name not in ("__version__", "__version_info__"):
+            msg = f"module {mod_name} has no attribute {name}"
+            raise AttributeError(msg)
+
+        from importlib.metadata import metadata
+
+        meta = metadata("attrs")
+
+        if name == "__version_info__":
+            return VersionInfo._from_version_string(meta["version"])
+
+        return meta["version"]
+
+    return __getattr__
+
+
+__getattr__ = _make_getattr(__name__)
@@ -0,0 +1,389 @@
+import enum
+import sys
+
+from typing import (
+    Any,
+    Callable,
+    Generic,
+    Literal,
+    Mapping,
+    Protocol,
+    Sequence,
+    TypeVar,
+    overload,
+)
+
+# `import X as X` is required to make these public
+from . import converters as converters
+from . import exceptions as exceptions
+from . import filters as filters
+from . import setters as setters
+from . import validators as validators
+from ._cmp import cmp_using as cmp_using
+from ._typing_compat import AttrsInstance_
+from ._version_info import VersionInfo
+from attrs import (
+    define as define,
+    field as field,
+    mutable as mutable,
+    frozen as frozen,
+    _EqOrderType,
+    _ValidatorType,
+    _ConverterType,
+    _ReprArgType,
+    _OnSetAttrType,
+    _OnSetAttrArgType,
+    _FieldTransformer,
+    _ValidatorArgType,
+)
+
+if sys.version_info >= (3, 10):
+    from typing import TypeGuard, TypeAlias
+else:
+    from typing_extensions import TypeGuard, TypeAlias
+
+if sys.version_info >= (3, 11):
+    from typing import dataclass_transform
+else:
+    from typing_extensions import dataclass_transform
+
+__version__: str
+__version_info__: VersionInfo
+__title__: str
+__description__: str
+__url__: str
+__uri__: str
+__author__: str
+__email__: str
+__license__: str
+__copyright__: str
+
+_T = TypeVar("_T")
+_C = TypeVar("_C", bound=type)
+
+_FilterType = Callable[["Attribute[_T]", _T], bool]
+
+# We subclass this here to keep the protocol's qualified name clean.
+class AttrsInstance(AttrsInstance_, Protocol):
+    pass
+
+_A = TypeVar("_A", bound=type[AttrsInstance])
+
+class _Nothing(enum.Enum):
+    NOTHING = enum.auto()
+
+NOTHING = _Nothing.NOTHING
+NothingType: TypeAlias = Literal[_Nothing.NOTHING]
+
+# NOTE: Factory lies about its return type to make this possible:
+# `x: List[int] # = Factory(list)`
+# Work around mypy issue #4554 in the common case by using an overload.
+
+@overload
+def Factory(factory: Callable[[], _T]) -> _T: ...
+@overload
+def Factory(
+    factory: Callable[[Any], _T],
+    takes_self: Literal[True],
+) -> _T: ...
+@overload
+def Factory(
+    factory: Callable[[], _T],
+    takes_self: Literal[False],
+) -> _T: ...
+
+In = TypeVar("In")
+Out = TypeVar("Out")
+
+class Converter(Generic[In, Out]):
+    @overload
+    def __init__(self, converter: Callable[[In], Out]) -> None: ...
+    @overload
+    def __init__(
+        self,
+        converter: Callable[[In, AttrsInstance, Attribute], Out],
+        *,
+        takes_self: Literal[True],
+        takes_field: Literal[True],
+    ) -> None: ...
+    @overload
+    def __init__(
+        self,
+        converter: Callable[[In, Attribute], Out],
+        *,
+        takes_field: Literal[True],
+    ) -> None: ...
+    @overload
+    def __init__(
+        self,
+        converter: Callable[[In, AttrsInstance], Out],
+        *,
+        takes_self: Literal[True],
+    ) -> None: ...
+
+class Attribute(Generic[_T]):
+    name: str
+    default: _T | None
+    validator: _ValidatorType[_T] | None
+    repr: _ReprArgType
+    cmp: _EqOrderType
+    eq: _EqOrderType
+    order: _EqOrderType
+    hash: bool | None
+    init: bool
+    converter: Converter | None
+    metadata: dict[Any, Any]
+    type: type[_T] | None
+    kw_only: bool
+    on_setattr: _OnSetAttrType
+    alias: str | None
+
+    def evolve(self, **changes: Any) -> "Attribute[Any]": ...
+
+# NOTE: We had several choices for the annotation to use for type arg:
+# 1) Type[_T]
+#   - Pros: Handles simple cases correctly
+#   - Cons: Might produce less informative errors in the case of conflicting
+#     TypeVars e.g. `attr.ib(default='bad', type=int)`
+# 2) Callable[..., _T]
+#   - Pros: Better error messages than #1 for conflicting TypeVars
+#   - Cons: Terrible error messages for validator checks.
+#   e.g. attr.ib(type=int, validator=validate_str)
+#        -> error: Cannot infer function type argument
+# 3) type (and do all of the work in the mypy plugin)
+#   - Pros: Simple here, and we could customize the plugin with our own errors.
+#   - Cons: Would need to write mypy plugin code to handle all the cases.
+# We chose option #1.
+
+# `attr` lies about its return type to make the following possible:
+#     attr()    -> Any
+#     attr(8)   -> int
+#     attr(validator=<some callable>)  -> Whatever the callable expects.
+# This makes this type of assignments possible:
+#     x: int = attr(8)
+#
+# This form catches explicit None or no default but with no other arguments
+# returns Any.
+@overload
+def attrib(
+    default: None = ...,
+    validator: None = ...,
+    repr: _ReprArgType = ...,
+    cmp: _EqOrderType | None = ...,
+    hash: bool | None = ...,
+    init: bool = ...,
+    metadata: Mapping[Any, Any] | None = ...,
+    type: None = ...,
+    converter: None = ...,
+    factory: None = ...,
+    kw_only: bool | None = ...,
+    eq: _EqOrderType | None = ...,
+    order: _EqOrderType | None = ...,
+    on_setattr: _OnSetAttrArgType | None = ...,
+    alias: str | None = ...,
+) -> Any: ...
+
+# This form catches an explicit None or no default and infers the type from the
+# other arguments.
+@overload
+def attrib(
+    default: None = ...,
+    validator: _ValidatorArgType[_T] | None = ...,
+    repr: _ReprArgType = ...,
+    cmp: _EqOrderType | None = ...,
+    hash: bool | None = ...,
+    init: bool = ...,
+    metadata: Mapping[Any, Any] | None = ...,
+    type: type[_T] | None = ...,
+    converter: _ConverterType
+    | list[_ConverterType]
+    | tuple[_ConverterType]
+    | None = ...,
+    factory: Callable[[], _T] | None = ...,
+    kw_only: bool | None = ...,
+    eq: _EqOrderType | None = ...,
+    order: _EqOrderType | None = ...,
+    on_setattr: _OnSetAttrArgType | None = ...,
+    alias: str | None = ...,
+) -> _T: ...
+
+# This form catches an explicit default argument.
+@overload
+def attrib(
+    default: _T,
+    validator: _ValidatorArgType[_T] | None = ...,
+    repr: _ReprArgType = ...,
+    cmp: _EqOrderType | None = ...,
+    hash: bool | None = ...,
+    init: bool = ...,
+    metadata: Mapping[Any, Any] | None = ...,
+    type: type[_T] | None = ...,
+    converter: _ConverterType
+    | list[_ConverterType]
+    | tuple[_ConverterType]
+    | None = ...,
+    factory: Callable[[], _T] | None = ...,
+    kw_only: bool | None = ...,
+    eq: _EqOrderType | None = ...,
+    order: _EqOrderType | None = ...,
+    on_setattr: _OnSetAttrArgType | None = ...,
+    alias: str | None = ...,
+) -> _T: ...
+
+# This form covers type=non-Type: e.g. forward references (str), Any
+@overload
+def attrib(
+    default: _T | None = ...,
+    validator: _ValidatorArgType[_T] | None = ...,
+    repr: _ReprArgType = ...,
+    cmp: _EqOrderType | None = ...,
+    hash: bool | None = ...,
+    init: bool = ...,
+    metadata: Mapping[Any, Any] | None = ...,
+    type: object = ...,
+    converter: _ConverterType
+    | list[_ConverterType]
+    | tuple[_ConverterType]
+    | None = ...,
+    factory: Callable[[], _T] | None = ...,
+    kw_only: bool | None = ...,
+    eq: _EqOrderType | None = ...,
+    order: _EqOrderType | None = ...,
+    on_setattr: _OnSetAttrArgType | None = ...,
+    alias: str | None = ...,
+) -> Any: ...
+@overload
+@dataclass_transform(order_default=True, field_specifiers=(attrib, field))
+def attrs(
+    maybe_cls: _C,
+    these: dict[str, Any] | None = ...,
+    repr_ns: str | None = ...,
+    repr: bool = ...,
+    cmp: _EqOrderType | None = ...,
+    hash: bool | None = ...,
+    init: bool = ...,
+    slots: bool = ...,
+    frozen: bool = ...,
+    weakref_slot: bool = ...,
+    str: bool = ...,
+    auto_attribs: bool = ...,
+    kw_only: bool = ...,
+    cache_hash: bool = ...,
+    auto_exc: bool = ...,
+    eq: _EqOrderType | None = ...,
+    order: _EqOrderType | None = ...,
+    auto_detect: bool = ...,
+    collect_by_mro: bool = ...,
+    getstate_setstate: bool | None = ...,
+    on_setattr: _OnSetAttrArgType | None = ...,
+    field_transformer: _FieldTransformer | None = ...,
+    match_args: bool = ...,
+    unsafe_hash: bool | None = ...,
+) -> _C: ...
+@overload
+@dataclass_transform(order_default=True, field_specifiers=(attrib, field))
+def attrs(
+    maybe_cls: None = ...,
+    these: dict[str, Any] | None = ...,
+    repr_ns: str | None = ...,
+    repr: bool = ...,
+    cmp: _EqOrderType | None = ...,
+    hash: bool | None = ...,
+    init: bool = ...,
+    slots: bool = ...,
+    frozen: bool = ...,
+    weakref_slot: bool = ...,
+    str: bool = ...,
+    auto_attribs: bool = ...,
+    kw_only: bool = ...,
+    cache_hash: bool = ...,
+    auto_exc: bool = ...,
+    eq: _EqOrderType | None = ...,
+    order: _EqOrderType | None = ...,
+    auto_detect: bool = ...,
+    collect_by_mro: bool = ...,
+    getstate_setstate: bool | None = ...,
+    on_setattr: _OnSetAttrArgType | None = ...,
+    field_transformer: _FieldTransformer | None = ...,
+    match_args: bool = ...,
+    unsafe_hash: bool | None = ...,
+) -> Callable[[_C], _C]: ...
+def fields(cls: type[AttrsInstance] | AttrsInstance) -> Any: ...
+def fields_dict(cls: type[AttrsInstance]) -> dict[str, Attribute[Any]]: ...
+def validate(inst: AttrsInstance) -> None: ...
+def resolve_types(
+    cls: _A,
+    globalns: dict[str, Any] | None = ...,
+    localns: dict[str, Any] | None = ...,
+    attribs: list[Attribute[Any]] | None = ...,
+    include_extras: bool = ...,
+) -> _A: ...
+
+# TODO: add support for returning a proper attrs class from the mypy plugin
+# we use Any instead of _CountingAttr so that e.g. `make_class('Foo',
+# [attr.ib()])` is valid
+def make_class(
+    name: str,
+    attrs: list[str] | tuple[str, ...] | dict[str, Any],
+    bases: tuple[type, ...] = ...,
+    class_body: dict[str, Any] | None = ...,
+    repr_ns: str | None = ...,
+    repr: bool = ...,
+    cmp: _EqOrderType | None = ...,
+    hash: bool | None = ...,
+    init: bool = ...,
+    slots: bool = ...,
+    frozen: bool = ...,
+    weakref_slot: bool = ...,
+    str: bool = ...,
+    auto_attribs: bool = ...,
+    kw_only: bool = ...,
+    cache_hash: bool = ...,
+    auto_exc: bool = ...,
+    eq: _EqOrderType | None = ...,
+    order: _EqOrderType | None = ...,
+    collect_by_mro: bool = ...,
+    on_setattr: _OnSetAttrArgType | None = ...,
+    field_transformer: _FieldTransformer | None = ...,
+) -> type: ...
+
+# _funcs --
+
+# TODO: add support for returning TypedDict from the mypy plugin
+# FIXME: asdict/astuple do not honor their factory args. Waiting on one of
+# these:
+# https://github.com/python/mypy/issues/4236
+# https://github.com/python/typing/issues/253
+# XXX: remember to fix attrs.asdict/astuple too!
+def asdict(
+    inst: AttrsInstance,
+    recurse: bool = ...,
+    filter: _FilterType[Any] | None = ...,
+    dict_factory: type[Mapping[Any, Any]] = ...,
+    retain_collection_types: bool = ...,
+    value_serializer: Callable[[type, Attribute[Any], Any], Any] | None = ...,
+    tuple_keys: bool | None = ...,
+) -> dict[str, Any]: ...
+
+# TODO: add support for returning NamedTuple from the mypy plugin
+def astuple(
+    inst: AttrsInstance,
+    recurse: bool = ...,
+    filter: _FilterType[Any] | None = ...,
+    tuple_factory: type[Sequence[Any]] = ...,
+    retain_collection_types: bool = ...,
+) -> tuple[Any, ...]: ...
+def has(cls: type) -> TypeGuard[type[AttrsInstance]]: ...
+def assoc(inst: _T, **changes: Any) -> _T: ...
+def evolve(inst: _T, **changes: Any) -> _T: ...
+
+# _config --
+
+def set_run_validators(run: bool) -> None: ...
+def get_run_validators() -> bool: ...
+
+# aliases --
+
+s = attributes = attrs
+ib = attr = attrib
+dataclass = attrs  # Technically, partial(attrs, auto_attribs=True) ;)
@@ -0,0 +1,160 @@
+# SPDX-License-Identifier: MIT
+
+
+import functools
+import types
+
+from ._make import __ne__
+
+
+_operation_names = {"eq": "==", "lt": "<", "le": "<=", "gt": ">", "ge": ">="}
+
+
+def cmp_using(
+    eq=None,
+    lt=None,
+    le=None,
+    gt=None,
+    ge=None,
+    require_same_type=True,
+    class_name="Comparable",
+):
+    """
+    Create a class that can be passed into `attrs.field`'s ``eq``, ``order``,
+    and ``cmp`` arguments to customize field comparison.
+
+    The resulting class will have a full set of ordering methods if at least
+    one of ``{lt, le, gt, ge}`` and ``eq``  are provided.
+
+    Args:
+        eq (typing.Callable | None):
+            Callable used to evaluate equality of two objects.
+
+        lt (typing.Callable | None):
+            Callable used to evaluate whether one object is less than another
+            object.
+
+        le (typing.Callable | None):
+            Callable used to evaluate whether one object is less than or equal
+            to another object.
+
+        gt (typing.Callable | None):
+            Callable used to evaluate whether one object is greater than
+            another object.
+
+        ge (typing.Callable | None):
+            Callable used to evaluate whether one object is greater than or
+            equal to another object.
+
+        require_same_type (bool):
+            When `True`, equality and ordering methods will return
+            `NotImplemented` if objects are not of the same type.
+
+        class_name (str | None): Name of class. Defaults to "Comparable".
+
+    See `comparison` for more details.
+
+    .. versionadded:: 21.1.0
+    """
+
+    body = {
+        "__slots__": ["value"],
+        "__init__": _make_init(),
+        "_requirements": [],
+        "_is_comparable_to": _is_comparable_to,
+    }
+
+    # Add operations.
+    num_order_functions = 0
+    has_eq_function = False
+
+    if eq is not None:
+        has_eq_function = True
+        body["__eq__"] = _make_operator("eq", eq)
+        body["__ne__"] = __ne__
+
+    if lt is not None:
+        num_order_functions += 1
+        body["__lt__"] = _make_operator("lt", lt)
+
+    if le is not None:
+        num_order_functions += 1
+        body["__le__"] = _make_operator("le", le)
+
+    if gt is not None:
+        num_order_functions += 1
+        body["__gt__"] = _make_operator("gt", gt)
+
+    if ge is not None:
+        num_order_functions += 1
+        body["__ge__"] = _make_operator("ge", ge)
+
+    type_ = types.new_class(
+        class_name, (object,), {}, lambda ns: ns.update(body)
+    )
+
+    # Add same type requirement.
+    if require_same_type:
+        type_._requirements.append(_check_same_type)
+
+    # Add total ordering if at least one operation was defined.
+    if 0 < num_order_functions < 4:
+        if not has_eq_function:
+            # functools.total_ordering requires __eq__ to be defined,
+            # so raise early error here to keep a nice stack.
+            msg = "eq must be define is order to complete ordering from lt, le, gt, ge."
+            raise ValueError(msg)
+        type_ = functools.total_ordering(type_)
+
+    return type_
+
+
+def _make_init():
+    """
+    Create __init__ method.
+    """
+
+    def __init__(self, value):
+        """
+        Initialize object with *value*.
+        """
+        self.value = value
+
+    return __init__
+
+
+def _make_operator(name, func):
+    """
+    Create operator method.
+    """
+
+    def method(self, other):
+        if not self._is_comparable_to(other):
+            return NotImplemented
+
+        result = func(self.value, other.value)
+        if result is NotImplemented:
+            return NotImplemented
+
+        return result
+
+    method.__name__ = f"__{name}__"
+    method.__doc__ = (
+        f"Return a {_operation_names[name]} b.  Computed by attrs."
+    )
+
+    return method
+
+
+def _is_comparable_to(self, other):
+    """
+    Check whether `other` is comparable to `self`.
+    """
+    return all(func(self, other) for func in self._requirements)
+
+
+def _check_same_type(self, other):
+    """
+    Return True if *self* and *other* are of the same type, False otherwise.
+    """
+    return other.value.__class__ is self.value.__class__
@@ -0,0 +1,13 @@
+from typing import Any, Callable
+
+_CompareWithType = Callable[[Any, Any], bool]
+
+def cmp_using(
+    eq: _CompareWithType | None = ...,
+    lt: _CompareWithType | None = ...,
+    le: _CompareWithType | None = ...,
+    gt: _CompareWithType | None = ...,
+    ge: _CompareWithType | None = ...,
+    require_same_type: bool = ...,
+    class_name: str = ...,
+) -> type: ...
@@ -0,0 +1,99 @@
+# SPDX-License-Identifier: MIT
+
+import inspect
+import platform
+import sys
+import threading
+
+from collections.abc import Mapping, Sequence  # noqa: F401
+from typing import _GenericAlias
+
+
+PYPY = platform.python_implementation() == "PyPy"
+PY_3_10_PLUS = sys.version_info[:2] >= (3, 10)
+PY_3_11_PLUS = sys.version_info[:2] >= (3, 11)
+PY_3_12_PLUS = sys.version_info[:2] >= (3, 12)
+PY_3_13_PLUS = sys.version_info[:2] >= (3, 13)
+PY_3_14_PLUS = sys.version_info[:2] >= (3, 14)
+
+
+if PY_3_14_PLUS:
+    import annotationlib
+
+    # We request forward-ref annotations to not break in the presence of
+    # forward references.
+
+    def _get_annotations(cls):
+        return annotationlib.get_annotations(
+            cls, format=annotationlib.Format.FORWARDREF
+        )
+
+else:
+
+    def _get_annotations(cls):
+        """
+        Get annotations for *cls*.
+        """
+        return cls.__dict__.get("__annotations__", {})
+
+
+class _AnnotationExtractor:
+    """
+    Extract type annotations from a callable, returning None whenever there
+    is none.
+    """
+
+    __slots__ = ["sig"]
+
+    def __init__(self, callable):
+        try:
+            self.sig = inspect.signature(callable)
+        except (ValueError, TypeError):  # inspect failed
+            self.sig = None
+
+    def get_first_param_type(self):
+        """
+        Return the type annotation of the first argument if it's not empty.
+        """
+        if not self.sig:
+            return None
+
+        params = list(self.sig.parameters.values())
+        if params and params[0].annotation is not inspect.Parameter.empty:
+            return params[0].annotation
+
+        return None
+
+    def get_return_type(self):
+        """
+        Return the return type if it's not empty.
+        """
+        if (
+            self.sig
+            and self.sig.return_annotation is not inspect.Signature.empty
+        ):
+            return self.sig.return_annotation
+
+        return None
+
+
+# Thread-local global to track attrs instances which are already being repr'd.
+# This is needed because there is no other (thread-safe) way to pass info
+# about the instances that are already being repr'd through the call stack
+# in order to ensure we don't perform infinite recursion.
+#
+# For instance, if an instance contains a dict which contains that instance,
+# we need to know that we're already repr'ing the outside instance from within
+# the dict's repr() call.
+#
+# This lives here rather than in _make.py so that the functions in _make.py
+# don't have a direct reference to the thread-local in their globals dict.
+# If they have such a reference, it breaks cloudpickle.
+repr_context = threading.local()
+
+
+def get_generic_base(cl):
+    """If this is a generic class (A[str]), return the generic base for it."""
+    if cl.__class__ is _GenericAlias:
+        return cl.__origin__
+    return None
@@ -0,0 +1,31 @@
+# SPDX-License-Identifier: MIT
+
+__all__ = ["get_run_validators", "set_run_validators"]
+
+_run_validators = True
+
+
+def set_run_validators(run):
+    """
+    Set whether or not validators are run.  By default, they are run.
+
+    .. deprecated:: 21.3.0 It will not be removed, but it also will not be
+        moved to new ``attrs`` namespace. Use `attrs.validators.set_disabled()`
+        instead.
+    """
+    if not isinstance(run, bool):
+        msg = "'run' must be bool."
+        raise TypeError(msg)
+    global _run_validators
+    _run_validators = run
+
+
+def get_run_validators():
+    """
+    Return whether or not validators are run.
+
+    .. deprecated:: 21.3.0 It will not be removed, but it also will not be
+        moved to new ``attrs`` namespace. Use `attrs.validators.get_disabled()`
+        instead.
+    """
+    return _run_validators
@@ -0,0 +1,497 @@
+# SPDX-License-Identifier: MIT
+
+
+import copy
+
+from ._compat import get_generic_base
+from ._make import _OBJ_SETATTR, NOTHING, fields
+from .exceptions import AttrsAttributeNotFoundError
+
+
+_ATOMIC_TYPES = frozenset(
+    {
+        type(None),
+        bool,
+        int,
+        float,
+        str,
+        complex,
+        bytes,
+        type(...),
+        type,
+        range,
+        property,
+    }
+)
+
+
+def asdict(
+    inst,
+    recurse=True,
+    filter=None,
+    dict_factory=dict,
+    retain_collection_types=False,
+    value_serializer=None,
+):
+    """
+    Return the *attrs* attribute values of *inst* as a dict.
+
+    Optionally recurse into other *attrs*-decorated classes.
+
+    Args:
+        inst: Instance of an *attrs*-decorated class.
+
+        recurse (bool): Recurse into classes that are also *attrs*-decorated.
+
+        filter (~typing.Callable):
+            A callable whose return code determines whether an attribute or
+            element is included (`True`) or dropped (`False`).  Is called with
+            the `attrs.Attribute` as the first argument and the value as the
+            second argument.
+
+        dict_factory (~typing.Callable):
+            A callable to produce dictionaries from.  For example, to produce
+            ordered dictionaries instead of normal Python dictionaries, pass in
+            ``collections.OrderedDict``.
+
+        retain_collection_types (bool):
+            Do not convert to `list` when encountering an attribute whose type
+            is `tuple` or `set`.  Only meaningful if *recurse* is `True`.
+
+        value_serializer (typing.Callable | None):
+            A hook that is called for every attribute or dict key/value.  It
+            receives the current instance, field and value and must return the
+            (updated) value.  The hook is run *after* the optional *filter* has
+            been applied.
+
+    Returns:
+        Return type of *dict_factory*.
+
+    Raises:
+        attrs.exceptions.NotAnAttrsClassError:
+            If *cls* is not an *attrs* class.
+
+    ..  versionadded:: 16.0.0 *dict_factory*
+    ..  versionadded:: 16.1.0 *retain_collection_types*
+    ..  versionadded:: 20.3.0 *value_serializer*
+    ..  versionadded:: 21.3.0
+        If a dict has a collection for a key, it is serialized as a tuple.
+    """
+    attrs = fields(inst.__class__)
+    rv = dict_factory()
+    for a in attrs:
+        v = getattr(inst, a.name)
+        if filter is not None and not filter(a, v):
+            continue
+
+        if value_serializer is not None:
+            v = value_serializer(inst, a, v)
+
+        if recurse is True:
+            value_type = type(v)
+            if value_type in _ATOMIC_TYPES:
+                rv[a.name] = v
+            elif has(value_type):
+                rv[a.name] = asdict(
+                    v,
+                    recurse=True,
+                    filter=filter,
+                    dict_factory=dict_factory,
+                    retain_collection_types=retain_collection_types,
+                    value_serializer=value_serializer,
+                )
+            elif issubclass(value_type, (tuple, list, set, frozenset)):
+                cf = value_type if retain_collection_types is True else list
+                items = [
+                    _asdict_anything(
+                        i,
+                        is_key=False,
+                        filter=filter,
+                        dict_factory=dict_factory,
+                        retain_collection_types=retain_collection_types,
+                        value_serializer=value_serializer,
+                    )
+                    for i in v
+                ]
+                try:
+                    rv[a.name] = cf(items)
+                except TypeError:
+                    if not issubclass(cf, tuple):
+                        raise
+                    # Workaround for TypeError: cf.__new__() missing 1 required
+                    # positional argument (which appears, for a namedturle)
+                    rv[a.name] = cf(*items)
+            elif issubclass(value_type, dict):
+                df = dict_factory
+                rv[a.name] = df(
+                    (
+                        _asdict_anything(
+                            kk,
+                            is_key=True,
+                            filter=filter,
+                            dict_factory=df,
+                            retain_collection_types=retain_collection_types,
+                            value_serializer=value_serializer,
+                        ),
+                        _asdict_anything(
+                            vv,
+                            is_key=False,
+                            filter=filter,
+                            dict_factory=df,
+                            retain_collection_types=retain_collection_types,
+                            value_serializer=value_serializer,
+                        ),
+                    )
+                    for kk, vv in v.items()
+                )
+            else:
+                rv[a.name] = v
+        else:
+            rv[a.name] = v
+    return rv
+
+
+def _asdict_anything(
+    val,
+    is_key,
+    filter,
+    dict_factory,
+    retain_collection_types,
+    value_serializer,
+):
+    """
+    ``asdict`` only works on attrs instances, this works on anything.
+    """
+    val_type = type(val)
+    if val_type in _ATOMIC_TYPES:
+        rv = val
+        if value_serializer is not None:
+            rv = value_serializer(None, None, rv)
+    elif getattr(val_type, "__attrs_attrs__", None) is not None:
+        # Attrs class.
+        rv = asdict(
+            val,
+            recurse=True,
+            filter=filter,
+            dict_factory=dict_factory,
+            retain_collection_types=retain_collection_types,
+            value_serializer=value_serializer,
+        )
+    elif issubclass(val_type, (tuple, list, set, frozenset)):
+        if retain_collection_types is True:
+            cf = val.__class__
+        elif is_key:
+            cf = tuple
+        else:
+            cf = list
+
+        rv = cf(
+            [
+                _asdict_anything(
+                    i,
+                    is_key=False,
+                    filter=filter,
+                    dict_factory=dict_factory,
+                    retain_collection_types=retain_collection_types,
+                    value_serializer=value_serializer,
+                )
+                for i in val
+            ]
+        )
+    elif issubclass(val_type, dict):
+        df = dict_factory
+        rv = df(
+            (
+                _asdict_anything(
+                    kk,
+                    is_key=True,
+                    filter=filter,
+                    dict_factory=df,
+                    retain_collection_types=retain_collection_types,
+                    value_serializer=value_serializer,
+                ),
+                _asdict_anything(
+                    vv,
+                    is_key=False,
+                    filter=filter,
+                    dict_factory=df,
+                    retain_collection_types=retain_collection_types,
+                    value_serializer=value_serializer,
+                ),
+            )
+            for kk, vv in val.items()
+        )
+    else:
+        rv = val
+        if value_serializer is not None:
+            rv = value_serializer(None, None, rv)
+
+    return rv
+
+
+def astuple(
+    inst,
+    recurse=True,
+    filter=None,
+    tuple_factory=tuple,
+    retain_collection_types=False,
+):
+    """
+    Return the *attrs* attribute values of *inst* as a tuple.
+
+    Optionally recurse into other *attrs*-decorated classes.
+
+    Args:
+        inst: Instance of an *attrs*-decorated class.
+
+        recurse (bool):
+            Recurse into classes that are also *attrs*-decorated.
+
+        filter (~typing.Callable):
+            A callable whose return code determines whether an attribute or
+            element is included (`True`) or dropped (`False`).  Is called with
+            the `attrs.Attribute` as the first argument and the value as the
+            second argument.
+
+        tuple_factory (~typing.Callable):
+            A callable to produce tuples from. For example, to produce lists
+            instead of tuples.
+
+        retain_collection_types (bool):
+            Do not convert to `list` or `dict` when encountering an attribute
+            which type is `tuple`, `dict` or `set`. Only meaningful if
+            *recurse* is `True`.
+
+    Returns:
+        Return type of *tuple_factory*
+
+    Raises:
+        attrs.exceptions.NotAnAttrsClassError:
+            If *cls* is not an *attrs* class.
+
+    ..  versionadded:: 16.2.0
+    """
+    attrs = fields(inst.__class__)
+    rv = []
+    retain = retain_collection_types  # Very long. :/
+    for a in attrs:
+        v = getattr(inst, a.name)
+        if filter is not None and not filter(a, v):
+            continue
+        value_type = type(v)
+        if recurse is True:
+            if value_type in _ATOMIC_TYPES:
+                rv.append(v)
+            elif has(value_type):
+                rv.append(
+                    astuple(
+                        v,
+                        recurse=True,
+                        filter=filter,
+                        tuple_factory=tuple_factory,
+                        retain_collection_types=retain,
+                    )
+                )
+            elif issubclass(value_type, (tuple, list, set, frozenset)):
+                cf = v.__class__ if retain is True else list
+                items = [
+                    (
+                        astuple(
+                            j,
+                            recurse=True,
+                            filter=filter,
+                            tuple_factory=tuple_factory,
+                            retain_collection_types=retain,
+                        )
+                        if has(j.__class__)
+                        else j
+                    )
+                    for j in v
+                ]
+                try:
+                    rv.append(cf(items))
+                except TypeError:
+                    if not issubclass(cf, tuple):
+                        raise
+                    # Workaround for TypeError: cf.__new__() missing 1 required
+                    # positional argument (which appears, for a namedturle)
+                    rv.append(cf(*items))
+            elif issubclass(value_type, dict):
+                df = value_type if retain is True else dict
+                rv.append(
+                    df(
+                        (
+                            (
+                                astuple(
+                                    kk,
+                                    tuple_factory=tuple_factory,
+                                    retain_collection_types=retain,
+                                )
+                                if has(kk.__class__)
+                                else kk
+                            ),
+                            (
+                                astuple(
+                                    vv,
+                                    tuple_factory=tuple_factory,
+                                    retain_collection_types=retain,
+                                )
+                                if has(vv.__class__)
+                                else vv
+                            ),
+                        )
+                        for kk, vv in v.items()
+                    )
+                )
+            else:
+                rv.append(v)
+        else:
+            rv.append(v)
+
+    return rv if tuple_factory is list else tuple_factory(rv)
+
+
+def has(cls):
+    """
+    Check whether *cls* is a class with *attrs* attributes.
+
+    Args:
+        cls (type): Class to introspect.
+
+    Raises:
+        TypeError: If *cls* is not a class.
+
+    Returns:
+        bool:
+    """
+    attrs = getattr(cls, "__attrs_attrs__", None)
+    if attrs is not None:
+        return True
+
+    # No attrs, maybe it's a specialized generic (A[str])?
+    generic_base = get_generic_base(cls)
+    if generic_base is not None:
+        generic_attrs = getattr(generic_base, "__attrs_attrs__", None)
+        if generic_attrs is not None:
+            # Stick it on here for speed next time.
+            cls.__attrs_attrs__ = generic_attrs
+        return generic_attrs is not None
+    return False
+
+
+def assoc(inst, **changes):
+    """
+    Copy *inst* and apply *changes*.
+
+    This is different from `evolve` that applies the changes to the arguments
+    that create the new instance.
+
+    `evolve`'s behavior is preferable, but there are `edge cases`_ where it
+    doesn't work. Therefore `assoc` is deprecated, but will not be removed.
+
+    .. _`edge cases`: https://github.com/python-attrs/attrs/issues/251
+
+    Args:
+        inst: Instance of a class with *attrs* attributes.
+
+        changes: Keyword changes in the new copy.
+
+    Returns:
+        A copy of inst with *changes* incorporated.
+
+    Raises:
+        attrs.exceptions.AttrsAttributeNotFoundError:
+            If *attr_name* couldn't be found on *cls*.
+
+        attrs.exceptions.NotAnAttrsClassError:
+            If *cls* is not an *attrs* class.
+
+    ..  deprecated:: 17.1.0
+        Use `attrs.evolve` instead if you can. This function will not be
+        removed du to the slightly different approach compared to
+        `attrs.evolve`, though.
+    """
+    new = copy.copy(inst)
+    attrs = fields(inst.__class__)
+    for k, v in changes.items():
+        a = getattr(attrs, k, NOTHING)
+        if a is NOTHING:
+            msg = f"{k} is not an attrs attribute on {new.__class__}."
+            raise AttrsAttributeNotFoundError(msg)
+        _OBJ_SETATTR(new, k, v)
+    return new
+
+
+def resolve_types(
+    cls, globalns=None, localns=None, attribs=None, include_extras=True
+):
+    """
+    Resolve any strings and forward annotations in type annotations.
+
+    This is only required if you need concrete types in :class:`Attribute`'s
+    *type* field. In other words, you don't need to resolve your types if you
+    only use them for static type checking.
+
+    With no arguments, names will be looked up in the module in which the class
+    was created. If this is not what you want, for example, if the name only
+    exists inside a method, you may pass *globalns* or *localns* to specify
+    other dictionaries in which to look up these names. See the docs of
+    `typing.get_type_hints` for more details.
+
+    Args:
+        cls (type): Class to resolve.
+
+        globalns (dict | None): Dictionary containing global variables.
+
+        localns (dict | None): Dictionary containing local variables.
+
+        attribs (list | None):
+            List of attribs for the given class. This is necessary when calling
+            from inside a ``field_transformer`` since *cls* is not an *attrs*
+            class yet.
+
+        include_extras (bool):
+            Resolve more accurately, if possible. Pass ``include_extras`` to
+            ``typing.get_hints``, if supported by the typing module. On
+            supported Python versions (3.9+), this resolves the types more
+            accurately.
+
+    Raises:
+        TypeError: If *cls* is not a class.
+
+        attrs.exceptions.NotAnAttrsClassError:
+            If *cls* is not an *attrs* class and you didn't pass any attribs.
+
+        NameError: If types cannot be resolved because of missing variables.
+
+    Returns:
+        *cls* so you can use this function also as a class decorator. Please
+        note that you have to apply it **after** `attrs.define`. That means the
+        decorator has to come in the line **before** `attrs.define`.
+
+    ..  versionadded:: 20.1.0
+    ..  versionadded:: 21.1.0 *attribs*
+    ..  versionadded:: 23.1.0 *include_extras*
+    """
+    # Since calling get_type_hints is expensive we cache whether we've
+    # done it already.
+    if getattr(cls, "__attrs_types_resolved__", None) != cls:
+        import typing
+
+        kwargs = {
+            "globalns": globalns,
+            "localns": localns,
+            "include_extras": include_extras,
+        }
+
+        hints = typing.get_type_hints(cls, **kwargs)
+        for field in fields(cls) if attribs is None else attribs:
+            if field.name in hints:
+                # Since fields have been frozen we must work around it.
+                _OBJ_SETATTR(field, "type", hints[field.name])
+        # We store the class we resolved so that subclasses know they haven't
+        # been resolved.
+        cls.__attrs_types_resolved__ = cls
+
+    # Return the class so you can use it as a decorator too.
+    return cls
@@ -0,0 +1,674 @@
+# SPDX-License-Identifier: MIT
+
+"""
+These are keyword-only APIs that call `attr.s` and `attr.ib` with different
+default values.
+"""
+
+from functools import partial
+
+from . import setters
+from ._funcs import asdict as _asdict
+from ._funcs import astuple as _astuple
+from ._make import (
+    _DEFAULT_ON_SETATTR,
+    NOTHING,
+    _frozen_setattrs,
+    attrib,
+    attrs,
+)
+from .exceptions import NotAnAttrsClassError, UnannotatedAttributeError
+
+
+def define(
+    maybe_cls=None,
+    *,
+    these=None,
+    repr=None,
+    unsafe_hash=None,
+    hash=None,
+    init=None,
+    slots=True,
+    frozen=False,
+    weakref_slot=True,
+    str=False,
+    auto_attribs=None,
+    kw_only=False,
+    cache_hash=False,
+    auto_exc=True,
+    eq=None,
+    order=False,
+    auto_detect=True,
+    getstate_setstate=None,
+    on_setattr=None,
+    field_transformer=None,
+    match_args=True,
+    force_kw_only=False,
+):
+    r"""
+    A class decorator that adds :term:`dunder methods` according to
+    :term:`fields <field>` specified using :doc:`type annotations <types>`,
+    `field()` calls, or the *these* argument.
+
+    Since *attrs* patches or replaces an existing class, you cannot use
+    `object.__init_subclass__` with *attrs* classes, because it runs too early.
+    As a replacement, you can define ``__attrs_init_subclass__`` on your class.
+    It will be called by *attrs* classes that subclass it after they're
+    created. See also :ref:`init-subclass`.
+
+    Args:
+        slots (bool):
+            Create a :term:`slotted class <slotted classes>` that's more
+            memory-efficient. Slotted classes are generally superior to the
+            default dict classes, but have some gotchas you should know about,
+            so we encourage you to read the :term:`glossary entry <slotted
+            classes>`.
+
+        auto_detect (bool):
+            Instead of setting the *init*, *repr*, *eq*, and *hash* arguments
+            explicitly, assume they are set to True **unless any** of the
+            involved methods for one of the arguments is implemented in the
+            *current* class (meaning, it is *not* inherited from some base
+            class).
+
+            So, for example by implementing ``__eq__`` on a class yourself,
+            *attrs* will deduce ``eq=False`` and will create *neither*
+            ``__eq__`` *nor* ``__ne__`` (but Python classes come with a
+            sensible ``__ne__`` by default, so it *should* be enough to only
+            implement ``__eq__`` in most cases).
+
+            Passing :data:`True` or :data:`False` to *init*, *repr*, *eq*, or *hash*
+            overrides whatever *auto_detect* would determine.
+
+        auto_exc (bool):
+            If the class subclasses `BaseException` (which implicitly includes
+            any subclass of any exception), the following happens to behave
+            like a well-behaved Python exception class:
+
+            - the values for *eq*, *order*, and *hash* are ignored and the
+              instances compare and hash by the instance's ids [#]_ ,
+            - all attributes that are either passed into ``__init__`` or have a
+              default value are additionally available as a tuple in the
+              ``args`` attribute,
+            - the value of *str* is ignored leaving ``__str__`` to base
+              classes.
+
+            .. [#]
+               Note that *attrs* will *not* remove existing implementations of
+               ``__hash__`` or the equality methods. It just won't add own
+               ones.
+
+        on_setattr (~typing.Callable | list[~typing.Callable] | None | ~typing.Literal[attrs.setters.NO_OP]):
+            A callable that is run whenever the user attempts to set an
+            attribute (either by assignment like ``i.x = 42`` or by using
+            `setattr` like ``setattr(i, "x", 42)``). It receives the same
+            arguments as validators: the instance, the attribute that is being
+            modified, and the new value.
+
+            If no exception is raised, the attribute is set to the return value
+            of the callable.
+
+            If a list of callables is passed, they're automatically wrapped in
+            an `attrs.setters.pipe`.
+
+            If left None, the default behavior is to run converters and
+            validators whenever an attribute is set.
+
+        init (bool):
+            Create a ``__init__`` method that initializes the *attrs*
+            attributes. Leading underscores are stripped for the argument name,
+            unless an alias is set on the attribute.
+
+            .. seealso::
+                `init` shows advanced ways to customize the generated
+                ``__init__`` method, including executing code before and after.
+
+        repr(bool):
+            Create a ``__repr__`` method with a human readable representation
+            of *attrs* attributes.
+
+        str (bool):
+            Create a ``__str__`` method that is identical to ``__repr__``. This
+            is usually not necessary except for `Exception`\ s.
+
+        eq (bool | None):
+            If True or None (default), add ``__eq__`` and ``__ne__`` methods
+            that check two instances for equality.
+
+            .. seealso::
+                `comparison` describes how to customize the comparison behavior
+                going as far comparing NumPy arrays.
+
+        order (bool | None):
+            If True, add ``__lt__``, ``__le__``, ``__gt__``, and ``__ge__``
+            methods that behave like *eq* above and allow instances to be
+            ordered.
+
+            They compare the instances as if they were tuples of their *attrs*
+            attributes if and only if the types of both classes are
+            *identical*.
+
+            If `None` mirror value of *eq*.
+
+            .. seealso:: `comparison`
+
+        unsafe_hash (bool | None):
+            If None (default), the ``__hash__`` method is generated according
+            how *eq* and *frozen* are set.
+
+            1. If *both* are True, *attrs* will generate a ``__hash__`` for
+               you.
+            2. If *eq* is True and *frozen* is False, ``__hash__`` will be set
+               to None, marking it unhashable (which it is).
+            3. If *eq* is False, ``__hash__`` will be left untouched meaning
+               the ``__hash__`` method of the base class will be used. If the
+               base class is `object`, this means it will fall back to id-based
+               hashing.
+
+            Although not recommended, you can decide for yourself and force
+            *attrs* to create one (for example, if the class is immutable even
+            though you didn't freeze it programmatically) by passing True or
+            not.  Both of these cases are rather special and should be used
+            carefully.
+
+            .. seealso::
+
+                - Our documentation on `hashing`,
+                - Python's documentation on `object.__hash__`,
+                - and the `GitHub issue that led to the default \ behavior
+                  <https://github.com/python-attrs/attrs/issues/136>`_ for more
+                  details.
+
+        hash (bool | None):
+            Deprecated alias for *unsafe_hash*. *unsafe_hash* takes precedence.
+
+        cache_hash (bool):
+            Ensure that the object's hash code is computed only once and stored
+            on the object.  If this is set to True, hashing must be either
+            explicitly or implicitly enabled for this class.  If the hash code
+            is cached, avoid any reassignments of fields involved in hash code
+            computation or mutations of the objects those fields point to after
+            object creation.  If such changes occur, the behavior of the
+            object's hash code is undefined.
+
+        frozen (bool):
+            Make instances immutable after initialization.  If someone attempts
+            to modify a frozen instance, `attrs.exceptions.FrozenInstanceError`
+            is raised.
+
+            .. note::
+
+                1. This is achieved by installing a custom ``__setattr__``
+                   method on your class, so you can't implement your own.
+
+                2. True immutability is impossible in Python.
+
+                3. This *does* have a minor a runtime performance `impact
+                   <how-frozen>` when initializing new instances.  In other
+                   words: ``__init__`` is slightly slower with ``frozen=True``.
+
+                4. If a class is frozen, you cannot modify ``self`` in
+                   ``__attrs_post_init__`` or a self-written ``__init__``. You
+                   can circumvent that limitation by using
+                   ``object.__setattr__(self, "attribute_name", value)``.
+
+                5. Subclasses of a frozen class are frozen too.
+
+        kw_only (bool):
+            Make attributes keyword-only in the generated ``__init__`` (if
+            *init* is False, this parameter is ignored).  Attributes that
+            explicitly set ``kw_only=False`` are not affected; base class
+            attributes are also not affected.
+
+            Also see *force_kw_only*.
+
+        weakref_slot (bool):
+            Make instances weak-referenceable.  This has no effect unless
+            *slots* is True.
+
+        field_transformer (~typing.Callable | None):
+            A function that is called with the original class object and all
+            fields right before *attrs* finalizes the class.  You can use this,
+            for example, to automatically add converters or validators to
+            fields based on their types.
+
+            .. seealso:: `transform-fields`
+
+        match_args (bool):
+            If True (default), set ``__match_args__`` on the class to support
+            :pep:`634` (*Structural Pattern Matching*). It is a tuple of all
+            non-keyword-only ``__init__`` parameter names on Python 3.10 and
+            later. Ignored on older Python versions.
+
+        collect_by_mro (bool):
+            If True, *attrs* collects attributes from base classes correctly
+            according to the `method resolution order
+            <https://docs.python.org/3/howto/mro.html>`_. If False, *attrs*
+            will mimic the (wrong) behavior of `dataclasses` and :pep:`681`.
+
+            See also `issue #428
+            <https://github.com/python-attrs/attrs/issues/428>`_.
+
+        force_kw_only (bool):
+            A back-compat flag for restoring pre-25.4.0 behavior.  If True and
+            ``kw_only=True``, all attributes are made keyword-only, including
+            base class attributes, and those set to ``kw_only=False`` at the
+            attribute level.  Defaults to False.
+
+            See also `issue #980
+            <https://github.com/python-attrs/attrs/issues/980>`_.
+
+        getstate_setstate (bool | None):
+            .. note::
+
+                This is usually only interesting for slotted classes and you
+                should probably just set *auto_detect* to True.
+
+            If True, ``__getstate__`` and ``__setstate__`` are generated and
+            attached to the class. This is necessary for slotted classes to be
+            pickleable. If left None, it's True by default for slotted classes
+            and False for dict classes.
+
+            If *auto_detect* is True, and *getstate_setstate* is left None, and
+            **either** ``__getstate__`` or ``__setstate__`` is detected
+            directly on the class (meaning: not inherited), it is set to False
+            (this is usually what you want).
+
+        auto_attribs (bool | None):
+            If True, look at type annotations to determine which attributes to
+            use, like `dataclasses`. If False, it will only look for explicit
+            :func:`field` class attributes, like classic *attrs*.
+
+            If left None, it will guess:
+
+            1. If any attributes are annotated and no unannotated
+               `attrs.field`\ s are found, it assumes *auto_attribs=True*.
+            2. Otherwise it assumes *auto_attribs=False* and tries to collect
+               `attrs.field`\ s.
+
+            If *attrs* decides to look at type annotations, **all** fields
+            **must** be annotated. If *attrs* encounters a field that is set to
+            a :func:`field` / `attr.ib` but lacks a type annotation, an
+            `attrs.exceptions.UnannotatedAttributeError` is raised.  Use
+            ``field_name: typing.Any = field(...)`` if you don't want to set a
+            type.
+
+            .. warning::
+
+                For features that use the attribute name to create decorators
+                (for example, :ref:`validators <validators>`), you still *must*
+                assign :func:`field` / `attr.ib` to them. Otherwise Python will
+                either not find the name or try to use the default value to
+                call, for example, ``validator`` on it.
+
+            Attributes annotated as `typing.ClassVar`, and attributes that are
+            neither annotated nor set to an `field()` are **ignored**.
+
+        these (dict[str, object]):
+            A dictionary of name to the (private) return value of `field()`
+            mappings. This is useful to avoid the definition of your attributes
+            within the class body because you can't (for example, if you want
+            to add ``__repr__`` methods to Django models) or don't want to.
+
+            If *these* is not `None`, *attrs* will *not* search the class body
+            for attributes and will *not* remove any attributes from it.
+
+            The order is deduced from the order of the attributes inside
+            *these*.
+
+            Arguably, this is a rather obscure feature.
+
+    .. versionadded:: 20.1.0
+    .. versionchanged:: 21.3.0 Converters are also run ``on_setattr``.
+    .. versionadded:: 22.2.0
+       *unsafe_hash* as an alias for *hash* (for :pep:`681` compliance).
+    .. versionchanged:: 24.1.0
+       Instances are not compared as tuples of attributes anymore, but using a
+       big ``and`` condition. This is faster and has more correct behavior for
+       uncomparable values like `math.nan`.
+    .. versionadded:: 24.1.0
+       If a class has an *inherited* classmethod called
+       ``__attrs_init_subclass__``, it is executed after the class is created.
+    .. deprecated:: 24.1.0 *hash* is deprecated in favor of *unsafe_hash*.
+    .. versionadded:: 24.3.0
+       Unless already present, a ``__replace__`` method is automatically
+       created for `copy.replace` (Python 3.13+ only).
+    .. versionchanged:: 25.4.0
+       *kw_only* now only applies to attributes defined in the current class,
+       and respects attribute-level ``kw_only=False`` settings.
+    .. versionadded:: 25.4.0
+       Added *force_kw_only* to go back to the previous *kw_only* behavior.
+
+    .. note::
+
+        The main differences to the classic `attr.s` are:
+
+        - Automatically detect whether or not *auto_attribs* should be `True`
+          (c.f. *auto_attribs* parameter).
+        - Converters and validators run when attributes are set by default --
+          if *frozen* is `False`.
+        - *slots=True*
+
+          Usually, this has only upsides and few visible effects in everyday
+          programming. But it *can* lead to some surprising behaviors, so
+          please make sure to read :term:`slotted classes`.
+
+        - *auto_exc=True*
+        - *auto_detect=True*
+        - *order=False*
+        - *force_kw_only=False*
+        - Some options that were only relevant on Python 2 or were kept around
+          for backwards-compatibility have been removed.
+
+    """
+
+    def do_it(cls, auto_attribs):
+        return attrs(
+            maybe_cls=cls,
+            these=these,
+            repr=repr,
+            hash=hash,
+            unsafe_hash=unsafe_hash,
+            init=init,
+            slots=slots,
+            frozen=frozen,
+            weakref_slot=weakref_slot,
+            str=str,
+            auto_attribs=auto_attribs,
+            kw_only=kw_only,
+            cache_hash=cache_hash,
+            auto_exc=auto_exc,
+            eq=eq,
+            order=order,
+            auto_detect=auto_detect,
+            collect_by_mro=True,
+            getstate_setstate=getstate_setstate,
+            on_setattr=on_setattr,
+            field_transformer=field_transformer,
+            match_args=match_args,
+            force_kw_only=force_kw_only,
+        )
+
+    def wrap(cls):
+        """
+        Making this a wrapper ensures this code runs during class creation.
+
+        We also ensure that frozen-ness of classes is inherited.
+        """
+        nonlocal frozen, on_setattr
+
+        had_on_setattr = on_setattr not in (None, setters.NO_OP)
+
+        # By default, mutable classes convert & validate on setattr.
+        if frozen is False and on_setattr is None:
+            on_setattr = _DEFAULT_ON_SETATTR
+
+        # However, if we subclass a frozen class, we inherit the immutability
+        # and disable on_setattr.
+        for base_cls in cls.__bases__:
+            if base_cls.__setattr__ is _frozen_setattrs:
+                if had_on_setattr:
+                    msg = "Frozen classes can't use on_setattr (frozen-ness was inherited)."
+                    raise ValueError(msg)
+
+                on_setattr = setters.NO_OP
+                break
+
+        if auto_attribs is not None:
+            return do_it(cls, auto_attribs)
+
+        try:
+            return do_it(cls, True)
+        except UnannotatedAttributeError:
+            return do_it(cls, False)
+
+    # maybe_cls's type depends on the usage of the decorator.  It's a class
+    # if it's used as `@attrs` but `None` if used as `@attrs()`.
+    if maybe_cls is None:
+        return wrap
+
+    return wrap(maybe_cls)
+
+
+mutable = define
+frozen = partial(define, frozen=True, on_setattr=None)
+
+
+def field(
+    *,
+    default=NOTHING,
+    validator=None,
+    repr=True,
+    hash=None,
+    init=True,
+    metadata=None,
+    type=None,
+    converter=None,
+    factory=None,
+    kw_only=None,
+    eq=None,
+    order=None,
+    on_setattr=None,
+    alias=None,
+):
+    """
+    Create a new :term:`field` / :term:`attribute` on a class.
+
+    ..  warning::
+
+        Does **nothing** unless the class is also decorated with
+        `attrs.define` (or similar)!
+
+    Args:
+        default:
+            A value that is used if an *attrs*-generated ``__init__`` is used
+            and no value is passed while instantiating or the attribute is
+            excluded using ``init=False``.
+
+            If the value is an instance of `attrs.Factory`, its callable will
+            be used to construct a new value (useful for mutable data types
+            like lists or dicts).
+
+            If a default is not set (or set manually to `attrs.NOTHING`), a
+            value *must* be supplied when instantiating; otherwise a
+            `TypeError` will be raised.
+
+            .. seealso:: `defaults`
+
+        factory (~typing.Callable):
+            Syntactic sugar for ``default=attr.Factory(factory)``.
+
+        validator (~typing.Callable | list[~typing.Callable]):
+            Callable that is called by *attrs*-generated ``__init__`` methods
+            after the instance has been initialized.  They receive the
+            initialized instance, the :func:`~attrs.Attribute`, and the passed
+            value.
+
+            The return value is *not* inspected so the validator has to throw
+            an exception itself.
+
+            If a `list` is passed, its items are treated as validators and must
+            all pass.
+
+            Validators can be globally disabled and re-enabled using
+            `attrs.validators.get_disabled` / `attrs.validators.set_disabled`.
+
+            The validator can also be set using decorator notation as shown
+            below.
+
+            .. seealso:: :ref:`validators`
+
+        repr (bool | ~typing.Callable):
+            Include this attribute in the generated ``__repr__`` method. If
+            True, include the attribute; if False, omit it. By default, the
+            built-in ``repr()`` function is used. To override how the attribute
+            value is formatted, pass a ``callable`` that takes a single value
+            and returns a string. Note that the resulting string is used as-is,
+            which means it will be used directly *instead* of calling
+            ``repr()`` (the default).
+
+        eq (bool | ~typing.Callable):
+            If True (default), include this attribute in the generated
+            ``__eq__`` and ``__ne__`` methods that check two instances for
+            equality. To override how the attribute value is compared, pass a
+            callable that takes a single value and returns the value to be
+            compared.
+
+            .. seealso:: `comparison`
+
+        order (bool | ~typing.Callable):
+            If True (default), include this attributes in the generated
+            ``__lt__``, ``__le__``, ``__gt__`` and ``__ge__`` methods. To
+            override how the attribute value is ordered, pass a callable that
+            takes a single value and returns the value to be ordered.
+
+            .. seealso:: `comparison`
+
+        hash (bool | None):
+            Include this attribute in the generated ``__hash__`` method.  If
+            None (default), mirror *eq*'s value.  This is the correct behavior
+            according the Python spec.  Setting this value to anything else
+            than None is *discouraged*.
+
+            .. seealso:: `hashing`
+
+        init (bool):
+            Include this attribute in the generated ``__init__`` method.
+
+            It is possible to set this to False and set a default value. In
+            that case this attributed is unconditionally initialized with the
+            specified default value or factory.
+
+            .. seealso:: `init`
+
+        converter (typing.Callable | Converter):
+            A callable that is called by *attrs*-generated ``__init__`` methods
+            to convert attribute's value to the desired format.
+
+            If a vanilla callable is passed, it is given the passed-in value as
+            the only positional argument. It is possible to receive additional
+            arguments by wrapping the callable in a `Converter`.
+
+            Either way, the returned value will be used as the new value of the
+            attribute.  The value is converted before being passed to the
+            validator, if any.
+
+            .. seealso:: :ref:`converters`
+
+        metadata (dict | None):
+            An arbitrary mapping, to be used by third-party code.
+
+            .. seealso:: `extending-metadata`.
+
+        type (type):
+            The type of the attribute. Nowadays, the preferred method to
+            specify the type is using a variable annotation (see :pep:`526`).
+            This argument is provided for backwards-compatibility and for usage
+            with `make_class`. Regardless of the approach used, the type will
+            be stored on ``Attribute.type``.
+
+            Please note that *attrs* doesn't do anything with this metadata by
+            itself. You can use it as part of your own code or for `static type
+            checking <types>`.
+
+        kw_only (bool | None):
+            Make this attribute keyword-only in the generated ``__init__`` (if
+            *init* is False, this parameter is ignored).  If None (default),
+            mirror the setting from `attrs.define`.
+
+        on_setattr (~typing.Callable | list[~typing.Callable] | None | ~typing.Literal[attrs.setters.NO_OP]):
+            Allows to overwrite the *on_setattr* setting from `attr.s`. If left
+            None, the *on_setattr* value from `attr.s` is used. Set to
+            `attrs.setters.NO_OP` to run **no** `setattr` hooks for this
+            attribute -- regardless of the setting in `define()`.
+
+        alias (str | None):
+            Override this attribute's parameter name in the generated
+            ``__init__`` method. If left None, default to ``name`` stripped
+            of leading underscores. See `private-attributes`.
+
+    .. versionadded:: 20.1.0
+    .. versionchanged:: 21.1.0
+       *eq*, *order*, and *cmp* also accept a custom callable
+    .. versionadded:: 22.2.0 *alias*
+    .. versionadded:: 23.1.0
+       The *type* parameter has been re-added; mostly for `attrs.make_class`.
+       Please note that type checkers ignore this metadata.
+    .. versionchanged:: 25.4.0
+       *kw_only* can now be None, and its default is also changed from False to
+       None.
+
+    .. seealso::
+
+       `attr.ib`
+    """
+    return attrib(
+        default=default,
+        validator=validator,
+        repr=repr,
+        hash=hash,
+        init=init,
+        metadata=metadata,
+        type=type,
+        converter=converter,
+        factory=factory,
+        kw_only=kw_only,
+        eq=eq,
+        order=order,
+        on_setattr=on_setattr,
+        alias=alias,
+    )
+
+
+def asdict(inst, *, recurse=True, filter=None, value_serializer=None):
+    """
+    Same as `attr.asdict`, except that collections types are always retained
+    and dict is always used as *dict_factory*.
+
+    .. versionadded:: 21.3.0
+    """
+    return _asdict(
+        inst=inst,
+        recurse=recurse,
+        filter=filter,
+        value_serializer=value_serializer,
+        retain_collection_types=True,
+    )
+
+
+def astuple(inst, *, recurse=True, filter=None):
+    """
+    Same as `attr.astuple`, except that collections types are always retained
+    and `tuple` is always used as the *tuple_factory*.
+
+    .. versionadded:: 21.3.0
+    """
+    return _astuple(
+        inst=inst, recurse=recurse, filter=filter, retain_collection_types=True
+    )
+
+
+def inspect(cls):
+    """
+    Inspect the class and return its effective build parameters.
+
+    Warning:
+        This feature is currently **experimental** and is not covered by our
+        strict backwards-compatibility guarantees.
+
+    Args:
+        cls: The *attrs*-decorated class to inspect.
+
+    Returns:
+        The effective build parameters of the class.
+
+    Raises:
+        NotAnAttrsClassError: If the class is not an *attrs*-decorated class.
+
+    .. versionadded:: 25.4.0
+    """
+    try:
+        return cls.__dict__["__attrs_props__"]
+    except KeyError:
+        msg = f"{cls!r} is not an attrs-decorated class."
+        raise NotAnAttrsClassError(msg) from None
@@ -0,0 +1,15 @@
+from typing import Any, ClassVar, Protocol
+
+# MYPY is a special constant in mypy which works the same way as `TYPE_CHECKING`.
+MYPY = False
+
+if MYPY:
+    # A protocol to be able to statically accept an attrs class.
+    class AttrsInstance_(Protocol):
+        __attrs_attrs__: ClassVar[Any]
+
+else:
+    # For type checkers without plug-in support use an empty protocol that
+    # will (hopefully) be combined into a union.
+    class AttrsInstance_(Protocol):
+        pass
@@ -0,0 +1,89 @@
+# SPDX-License-Identifier: MIT
+
+
+from functools import total_ordering
+
+from ._funcs import astuple
+from ._make import attrib, attrs
+
+
+@total_ordering
+@attrs(eq=False, order=False, slots=True, frozen=True)
+class VersionInfo:
+    """
+    A version object that can be compared to tuple of length 1--4:
+
+    >>> attr.VersionInfo(19, 1, 0, "final")  <= (19, 2)
+    True
+    >>> attr.VersionInfo(19, 1, 0, "final") < (19, 1, 1)
+    True
+    >>> vi = attr.VersionInfo(19, 2, 0, "final")
+    >>> vi < (19, 1, 1)
+    False
+    >>> vi < (19,)
+    False
+    >>> vi == (19, 2,)
+    True
+    >>> vi == (19, 2, 1)
+    False
+
+    .. versionadded:: 19.2
+    """
+
+    year = attrib(type=int)
+    minor = attrib(type=int)
+    micro = attrib(type=int)
+    releaselevel = attrib(type=str)
+
+    @classmethod
+    def _from_version_string(cls, s):
+        """
+        Parse *s* and return a _VersionInfo.
+        """
+        v = s.split(".")
+        if len(v) == 3:
+            v.append("final")
+
+        return cls(
+            year=int(v[0]), minor=int(v[1]), micro=int(v[2]), releaselevel=v[3]
+        )
+
+    def _ensure_tuple(self, other):
+        """
+        Ensure *other* is a tuple of a valid length.
+
+        Returns a possibly transformed *other* and ourselves as a tuple of
+        the same length as *other*.
+        """
+
+        if self.__class__ is other.__class__:
+            other = astuple(other)
+
+        if not isinstance(other, tuple):
+            raise NotImplementedError
+
+        if not (1 <= len(other) <= 4):
+            raise NotImplementedError
+
+        return astuple(self)[: len(other)], other
+
+    def __eq__(self, other):
+        try:
+            us, them = self._ensure_tuple(other)
+        except NotImplementedError:
+            return NotImplemented
+
+        return us == them
+
+    def __lt__(self, other):
+        try:
+            us, them = self._ensure_tuple(other)
+        except NotImplementedError:
+            return NotImplemented
+
+        # Since alphabetically "dev0" < "final" < "post1" < "post2", we don't
+        # have to do anything special with releaselevel for now.
+        return us < them
+
+    def __hash__(self):
+        return hash((self.year, self.minor, self.micro, self.releaselevel))
@@ -0,0 +1,9 @@
+class VersionInfo:
+    @property
+    def year(self) -> int: ...
+    @property
+    def minor(self) -> int: ...
+    @property
+    def micro(self) -> int: ...
+    @property
+    def releaselevel(self) -> str: ...
@@ -0,0 +1,162 @@
+# SPDX-License-Identifier: MIT
+
+"""
+Commonly useful converters.
+"""
+
+import typing
+
+from ._compat import _AnnotationExtractor
+from ._make import NOTHING, Converter, Factory, pipe
+
+
+__all__ = [
+    "default_if_none",
+    "optional",
+    "pipe",
+    "to_bool",
+]
+
+
+def optional(converter):
+    """
+    A converter that allows an attribute to be optional. An optional attribute
+    is one which can be set to `None`.
+
+    Type annotations will be inferred from the wrapped converter's, if it has
+    any.
+
+    Args:
+        converter (typing.Callable):
+            the converter that is used for non-`None` values.
+
+    .. versionadded:: 17.1.0
+    """
+
+    if isinstance(converter, Converter):
+
+        def optional_converter(val, inst, field):
+            if val is None:
+                return None
+            return converter(val, inst, field)
+
+    else:
+
+        def optional_converter(val):
+            if val is None:
+                return None
+            return converter(val)
+
+    xtr = _AnnotationExtractor(converter)
+
+    t = xtr.get_first_param_type()
+    if t:
+        optional_converter.__annotations__["val"] = typing.Optional[t]
+
+    rt = xtr.get_return_type()
+    if rt:
+        optional_converter.__annotations__["return"] = typing.Optional[rt]
+
+    if isinstance(converter, Converter):
+        return Converter(optional_converter, takes_self=True, takes_field=True)
+
+    return optional_converter
+
+
+def default_if_none(default=NOTHING, factory=None):
+    """
+    A converter that allows to replace `None` values by *default* or the result
+    of *factory*.
+
+    Args:
+        default:
+            Value to be used if `None` is passed. Passing an instance of
+            `attrs.Factory` is supported, however the ``takes_self`` option is
+            *not*.
+
+        factory (typing.Callable):
+            A callable that takes no parameters whose result is used if `None`
+            is passed.
+
+    Raises:
+        TypeError: If **neither** *default* or *factory* is passed.
+
+        TypeError: If **both** *default* and *factory* are passed.
+
+        ValueError:
+            If an instance of `attrs.Factory` is passed with
+            ``takes_self=True``.
+
+    .. versionadded:: 18.2.0
+    """
+    if default is NOTHING and factory is None:
+        msg = "Must pass either `default` or `factory`."
+        raise TypeError(msg)
+
+    if default is not NOTHING and factory is not None:
+        msg = "Must pass either `default` or `factory` but not both."
+        raise TypeError(msg)
+
+    if factory is not None:
+        default = Factory(factory)
+
+    if isinstance(default, Factory):
+        if default.takes_self:
+            msg = "`takes_self` is not supported by default_if_none."
+            raise ValueError(msg)
+
+        def default_if_none_converter(val):
+            if val is not None:
+                return val
+
+            return default.factory()
+
+    else:
+
+        def default_if_none_converter(val):
+            if val is not None:
+                return val
+
+            return default
+
+    return default_if_none_converter
+
+
+def to_bool(val):
+    """
+    Convert "boolean" strings (for example, from environment variables) to real
+    booleans.
+
+    Values mapping to `True`:
+
+    - ``True``
+    - ``"true"`` / ``"t"``
+    - ``"yes"`` / ``"y"``
+    - ``"on"``
+    - ``"1"``
+    - ``1``
+
+    Values mapping to `False`:
+
+    - ``False``
+    - ``"false"`` / ``"f"``
+    - ``"no"`` / ``"n"``
+    - ``"off"``
+    - ``"0"``
+    - ``0``
+
+    Raises:
+        ValueError: For any other value.
+
+    .. versionadded:: 21.3.0
+    """
+    if isinstance(val, str):
+        val = val.lower()
+
+    if val in (True, "true", "t", "yes", "y", "on", "1", 1):
+        return True
+    if val in (False, "false", "f", "no", "n", "off", "0", 0):
+        return False
+
+    msg = f"Cannot convert value to bool: {val!r}"
+    raise ValueError(msg)
@@ -0,0 +1,19 @@
+from typing import Callable, Any, overload
+
+from attrs import _ConverterType, _CallableConverterType
+
+@overload
+def pipe(*validators: _CallableConverterType) -> _CallableConverterType: ...
+@overload
+def pipe(*validators: _ConverterType) -> _ConverterType: ...
+@overload
+def optional(converter: _CallableConverterType) -> _CallableConverterType: ...
+@overload
+def optional(converter: _ConverterType) -> _ConverterType: ...
+@overload
+def default_if_none(default: Any) -> _CallableConverterType: ...
+@overload
+def default_if_none(
+    *, factory: Callable[[], Any]
+) -> _CallableConverterType: ...
+def to_bool(val: str | int | bool) -> bool: ...
@@ -0,0 +1,95 @@
+# SPDX-License-Identifier: MIT
+
+from __future__ import annotations
+
+
+class FrozenError(AttributeError):
+    """
+    A frozen/immutable instance or attribute have been attempted to be
+    modified.
+
+    It mirrors the behavior of ``namedtuples`` by using the same error message
+    and subclassing `AttributeError`.
+
+    .. versionadded:: 20.1.0
+    """
+
+    def __init__(self):
+        msg = "can't set attribute"
+        super().__init__(msg)
+        self.msg = msg
+
+
+class FrozenInstanceError(FrozenError):
+    """
+    A frozen instance has been attempted to be modified.
+
+    .. versionadded:: 16.1.0
+    """
+
+
+class FrozenAttributeError(FrozenError):
+    """
+    A frozen attribute has been attempted to be modified.
+
+    .. versionadded:: 20.1.0
+    """
+
+
+class AttrsAttributeNotFoundError(ValueError):
+    """
+    An *attrs* function couldn't find an attribute that the user asked for.
+
+    .. versionadded:: 16.2.0
+    """
+
+
+class NotAnAttrsClassError(ValueError):
+    """
+    A non-*attrs* class has been passed into an *attrs* function.
+
+    .. versionadded:: 16.2.0
+    """
+
+
+class DefaultAlreadySetError(RuntimeError):
+    """
+    A default has been set when defining the field and is attempted to be reset
+    using the decorator.
+
+    .. versionadded:: 17.1.0
+    """
+
+
+class UnannotatedAttributeError(RuntimeError):
+    """
+    A class with ``auto_attribs=True`` has a field without a type annotation.
+
+    .. versionadded:: 17.3.0
+    """
+
+
+class PythonTooOldError(RuntimeError):
+    """
+    It was attempted to use an *attrs* feature that requires a newer Python
+    version.
+
+    .. versionadded:: 18.2.0
+    """
+
+
+class NotCallableError(TypeError):
+    """
+    A field requiring a callable has been set with a value that is not
+    callable.
+
+    .. versionadded:: 19.2.0
+    """
+
+    def __init__(self, msg, value):
+        super(TypeError, self).__init__(msg, value)
+        self.msg = msg
+        self.value = value
+
+    def __str__(self):
+        return str(self.msg)
@@ -0,0 +1,17 @@
+from typing import Any
+
+class FrozenError(AttributeError):
+    msg: str = ...
+
+class FrozenInstanceError(FrozenError): ...
+class FrozenAttributeError(FrozenError): ...
+class AttrsAttributeNotFoundError(ValueError): ...
+class NotAnAttrsClassError(ValueError): ...
+class DefaultAlreadySetError(RuntimeError): ...
+class UnannotatedAttributeError(RuntimeError): ...
+class PythonTooOldError(RuntimeError): ...
+
+class NotCallableError(TypeError):
+    msg: str = ...
+    value: Any = ...
+    def __init__(self, msg: str, value: Any) -> None: ...
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: MIT
+
+"""
+Commonly useful filters for `attrs.asdict` and `attrs.astuple`.
+"""
+
+from ._make import Attribute
+
+
+def _split_what(what):
+    """
+    Returns a tuple of `frozenset`s of classes and attributes.
+    """
+    return (
+        frozenset(cls for cls in what if isinstance(cls, type)),
+        frozenset(cls for cls in what if isinstance(cls, str)),
+        frozenset(cls for cls in what if isinstance(cls, Attribute)),
+    )
+
+
+def include(*what):
+    """
+    Create a filter that only allows *what*.
+
+    Args:
+        what (list[type, str, attrs.Attribute]):
+            What to include. Can be a type, a name, or an attribute.
+
+    Returns:
+        Callable:
+            A callable that can be passed to `attrs.asdict`'s and
+            `attrs.astuple`'s *filter* argument.
+
+    .. versionchanged:: 23.1.0 Accept strings with field names.
+    """
+    cls, names, attrs = _split_what(what)
+
+    def include_(attribute, value):
+        return (
+            value.__class__ in cls
+            or attribute.name in names
+            or attribute in attrs
+        )
+
+    return include_
+
+
+def exclude(*what):
+    """
+    Create a filter that does **not** allow *what*.
+
+    Args:
+        what (list[type, str, attrs.Attribute]):
+            What to exclude. Can be a type, a name, or an attribute.
+
+    Returns:
+        Callable:
+            A callable that can be passed to `attrs.asdict`'s and
+            `attrs.astuple`'s *filter* argument.
+
+    .. versionchanged:: 23.3.0 Accept field name string as input argument
+    """
+    cls, names, attrs = _split_what(what)
+
+    def exclude_(attribute, value):
+        return not (
+            value.__class__ in cls
+            or attribute.name in names
+            or attribute in attrs
+        )
+
+    return exclude_
@@ -0,0 +1,6 @@
+from typing import Any
+
+from . import Attribute, _FilterType
+
+def include(*what: type | str | Attribute[Any]) -> _FilterType[Any]: ...
+def exclude(*what: type | str | Attribute[Any]) -> _FilterType[Any]: ...
@@ -0,0 +1,79 @@
+# SPDX-License-Identifier: MIT
+
+"""
+Commonly used hooks for on_setattr.
+"""
+
+from . import _config
+from .exceptions import FrozenAttributeError
+
+
+def pipe(*setters):
+    """
+    Run all *setters* and return the return value of the last one.
+
+    .. versionadded:: 20.1.0
+    """
+
+    def wrapped_pipe(instance, attrib, new_value):
+        rv = new_value
+
+        for setter in setters:
+            rv = setter(instance, attrib, rv)
+
+        return rv
+
+    return wrapped_pipe
+
+
+def frozen(_, __, ___):
+    """
+    Prevent an attribute to be modified.
+
+    .. versionadded:: 20.1.0
+    """
+    raise FrozenAttributeError
+
+
+def validate(instance, attrib, new_value):
+    """
+    Run *attrib*'s validator on *new_value* if it has one.
+
+    .. versionadded:: 20.1.0
+    """
+    if _config._run_validators is False:
+        return new_value
+
+    v = attrib.validator
+    if not v:
+        return new_value
+
+    v(instance, attrib, new_value)
+
+    return new_value
+
+
+def convert(instance, attrib, new_value):
+    """
+    Run *attrib*'s converter -- if it has one -- on *new_value* and return the
+    result.
+
+    .. versionadded:: 20.1.0
+    """
+    c = attrib.converter
+    if c:
+        # This can be removed once we drop 3.8 and use attrs.Converter instead.
+        from ._make import Converter
+
+        if not isinstance(c, Converter):
+            return c(new_value)
+
+        return c(new_value, instance, attrib)
+
+    return new_value
+
+
+# Sentinel for disabling class-wide *on_setattr* hooks for certain attributes.
+# Sphinx's autodata stopped working, so the docstring is inlined in the API
+# docs.
+NO_OP = object()
@@ -0,0 +1,20 @@
+from typing import Any, NewType, NoReturn, TypeVar
+
+from . import Attribute
+from attrs import _OnSetAttrType
+
+_T = TypeVar("_T")
+
+def frozen(
+    instance: Any, attribute: Attribute[Any], new_value: Any
+) -> NoReturn: ...
+def pipe(*setters: _OnSetAttrType) -> _OnSetAttrType: ...
+def validate(instance: Any, attribute: Attribute[_T], new_value: _T) -> _T: ...
+
+# convert is allowed to return Any, because they can be chained using pipe.
+def convert(
+    instance: Any, attribute: Attribute[Any], new_value: Any
+) -> Any: ...
+
+_NoOpType = NewType("_NoOpType", object)
+NO_OP: _NoOpType
@@ -0,0 +1,750 @@
+# SPDX-License-Identifier: MIT
+
+"""
+Commonly useful validators.
+"""
+
+import operator
+import re
+
+from contextlib import contextmanager
+from re import Pattern
+
+from ._config import get_run_validators, set_run_validators
+from ._make import _AndValidator, and_, attrib, attrs
+from .converters import default_if_none
+from .exceptions import NotCallableError
+
+
+__all__ = [
+    "and_",
+    "deep_iterable",
+    "deep_mapping",
+    "disabled",
+    "ge",
+    "get_disabled",
+    "gt",
+    "in_",
+    "instance_of",
+    "is_callable",
+    "le",
+    "lt",
+    "matches_re",
+    "max_len",
+    "min_len",
+    "not_",
+    "optional",
+    "or_",
+    "set_disabled",
+]
+
+
+def set_disabled(disabled):
+    """
+    Globally disable or enable running validators.
+
+    By default, they are run.
+
+    Args:
+        disabled (bool): If `True`, disable running all validators.
+
+    .. warning::
+
+        This function is not thread-safe!
+
+    .. versionadded:: 21.3.0
+    """
+    set_run_validators(not disabled)
+
+
+def get_disabled():
+    """
+    Return a bool indicating whether validators are currently disabled or not.
+
+    Returns:
+        bool:`True` if validators are currently disabled.
+
+    .. versionadded:: 21.3.0
+    """
+    return not get_run_validators()
+
+
+@contextmanager
+def disabled():
+    """
+    Context manager that disables running validators within its context.
+
+    .. warning::
+
+        This context manager is not thread-safe!
+
+    .. versionadded:: 21.3.0
+    .. versionchanged:: 26.1.0 The contextmanager is nestable.
+    """
+    prev = get_run_validators()
+    set_run_validators(False)
+    try:
+        yield
+    finally:
+        set_run_validators(prev)
+
+
+@attrs(repr=False, slots=True, unsafe_hash=True)
+class _InstanceOfValidator:
+    type = attrib()
+
+    def __call__(self, inst, attr, value):
+        """
+        We use a callable class to be able to change the ``__repr__``.
+        """
+        if not isinstance(value, self.type):
+            msg = f"'{attr.name}' must be {self.type!r} (got {value!r} that is a {value.__class__!r})."
+            raise TypeError(
+                msg,
+                attr,
+                self.type,
+                value,
+            )
+
+    def __repr__(self):
+        return f"<instance_of validator for type {self.type!r}>"
+
+
+def instance_of(type):
+    """
+    A validator that raises a `TypeError` if the initializer is called with a
+    wrong type for this particular attribute (checks are performed using
+    `isinstance` therefore it's also valid to pass a tuple of types).
+
+    Args:
+        type (type | tuple[type]): The type to check for.
+
+    Raises:
+        TypeError:
+            With a human readable error message, the attribute (of type
+            `attrs.Attribute`), the expected type, and the value it got.
+    """
+    return _InstanceOfValidator(type)
+
+
+@attrs(repr=False, frozen=True, slots=True)
+class _MatchesReValidator:
+    pattern = attrib()
+    match_func = attrib()
+
+    def __call__(self, inst, attr, value):
+        """
+        We use a callable class to be able to change the ``__repr__``.
+        """
+        if not self.match_func(value):
+            msg = f"'{attr.name}' must match regex {self.pattern.pattern!r} ({value!r} doesn't)"
+            raise ValueError(
+                msg,
+                attr,
+                self.pattern,
+                value,
+            )
+
+    def __repr__(self):
+        return f"<matches_re validator for pattern {self.pattern!r}>"
+
+
+def matches_re(regex, flags=0, func=None):
+    r"""
+    A validator that raises `ValueError` if the initializer is called with a
+    string that doesn't match *regex*.
+
+    Args:
+        regex (str, re.Pattern):
+            A regex string or precompiled pattern to match against
+
+        flags (int):
+            Flags that will be passed to the underlying re function (default 0)
+
+        func (typing.Callable):
+            Which underlying `re` function to call. Valid options are
+            `re.fullmatch`, `re.search`, and `re.match`; the default `None`
+            means `re.fullmatch`. For performance reasons, the pattern is
+            always precompiled using `re.compile`.
+
+    .. versionadded:: 19.2.0
+    .. versionchanged:: 21.3.0 *regex* can be a pre-compiled pattern.
+    """
+    valid_funcs = (re.fullmatch, None, re.search, re.match)
+    if func not in valid_funcs:
+        msg = "'func' must be one of {}.".format(
+            ", ".join(
+                sorted((e and e.__name__) or "None" for e in set(valid_funcs))
+            )
+        )
+        raise ValueError(msg)
+
+    if isinstance(regex, Pattern):
+        if flags:
+            msg = "'flags' can only be used with a string pattern; pass flags to re.compile() instead"
+            raise TypeError(msg)
+        pattern = regex
+    else:
+        pattern = re.compile(regex, flags)
+
+    if func is re.match:
+        match_func = pattern.match
+    elif func is re.search:
+        match_func = pattern.search
+    else:
+        match_func = pattern.fullmatch
+
+    return _MatchesReValidator(pattern, match_func)
+
+
+@attrs(repr=False, slots=True, unsafe_hash=True)
+class _OptionalValidator:
+    validator = attrib()
+
+    def __call__(self, inst, attr, value):
+        if value is None:
+            return
+
+        self.validator(inst, attr, value)
+
+    def __repr__(self):
+        return f"<optional validator for {self.validator!r} or None>"
+
+
+def optional(validator):
+    """
+    A validator that makes an attribute optional.  An optional attribute is one
+    which can be set to `None` in addition to satisfying the requirements of
+    the sub-validator.
+
+    Args:
+        validator
+            (typing.Callable | tuple[typing.Callable] | list[typing.Callable]):
+            A validator (or validators) that is used for non-`None` values.
+
+    .. versionadded:: 15.1.0
+    .. versionchanged:: 17.1.0 *validator* can be a list of validators.
+    .. versionchanged:: 23.1.0 *validator* can also be a tuple of validators.
+    """
+    if isinstance(validator, (list, tuple)):
+        return _OptionalValidator(_AndValidator(validator))
+
+    return _OptionalValidator(validator)
+
+
+@attrs(repr=False, slots=True, unsafe_hash=True)
+class _InValidator:
+    options = attrib()
+    _original_options = attrib(hash=False)
+
+    def __call__(self, inst, attr, value):
+        try:
+            in_options = value in self.options
+        except TypeError:  # e.g. `1 in "abc"`
+            in_options = False
+
+        if not in_options:
+            msg = f"'{attr.name}' must be in {self._original_options!r} (got {value!r})"
+            raise ValueError(
+                msg,
+                attr,
+                self._original_options,
+                value,
+            )
+
+    def __repr__(self):
+        return f"<in_ validator with options {self._original_options!r}>"
+
+
+def in_(options):
+    """
+    A validator that raises a `ValueError` if the initializer is called with a
+    value that does not belong in the *options* provided.
+
+    The check is performed using ``value in options``, so *options* has to
+    support that operation.
+
+    To keep the validator hashable, dicts, lists, and sets are transparently
+    transformed into a `tuple`.
+
+    Args:
+        options: Allowed options.
+
+    Raises:
+        ValueError:
+            With a human readable error message, the attribute (of type
+            `attrs.Attribute`), the expected options, and the value it got.
+
+    .. versionadded:: 17.1.0
+    .. versionchanged:: 22.1.0
+       The ValueError was incomplete until now and only contained the human
+       readable error message. Now it contains all the information that has
+       been promised since 17.1.0.
+    .. versionchanged:: 24.1.0
+       *options* that are a list, dict, or a set are now transformed into a
+       tuple to keep the validator hashable.
+    """
+    repr_options = options
+    if isinstance(options, (list, dict, set)):
+        options = tuple(options)
+
+    return _InValidator(options, repr_options)
+
+
+@attrs(repr=False, slots=False, unsafe_hash=True)
+class _IsCallableValidator:
+    def __call__(self, inst, attr, value):
+        """
+        We use a callable class to be able to change the ``__repr__``.
+        """
+        if not callable(value):
+            message = (
+                "'{name}' must be callable "
+                "(got {value!r} that is a {actual!r})."
+            )
+            raise NotCallableError(
+                msg=message.format(
+                    name=attr.name, value=value, actual=value.__class__
+                ),
+                value=value,
+            )
+
+    def __repr__(self):
+        return "<is_callable validator>"
+
+
+def is_callable():
+    """
+    A validator that raises a `attrs.exceptions.NotCallableError` if the
+    initializer is called with a value for this particular attribute that is
+    not callable.
+
+    .. versionadded:: 19.1.0
+
+    Raises:
+        attrs.exceptions.NotCallableError:
+            With a human readable error message containing the attribute
+            (`attrs.Attribute`) name, and the value it got.
+    """
+    return _IsCallableValidator()
+
+
+@attrs(repr=False, slots=True, unsafe_hash=True)
+class _DeepIterable:
+    member_validator = attrib(validator=is_callable())
+    iterable_validator = attrib(
+        default=None, validator=optional(is_callable())
+    )
+
+    def __call__(self, inst, attr, value):
+        """
+        We use a callable class to be able to change the ``__repr__``.
+        """
+        if self.iterable_validator is not None:
+            self.iterable_validator(inst, attr, value)
+
+        for member in value:
+            self.member_validator(inst, attr, member)
+
+    def __repr__(self):
+        iterable_identifier = (
+            ""
+            if self.iterable_validator is None
+            else f" {self.iterable_validator!r}"
+        )
+        return (
+            f"<deep_iterable validator for{iterable_identifier}"
+            f" iterables of {self.member_validator!r}>"
+        )
+
+
+def deep_iterable(member_validator, iterable_validator=None):
+    """
+    A validator that performs deep validation of an iterable.
+
+    Args:
+        member_validator: Validator(s) to apply to iterable members.
+
+        iterable_validator:
+            Validator(s) to apply to iterable itself (optional).
+
+    Raises
+        TypeError: if any sub-validators fail
+
+    .. versionadded:: 19.1.0
+
+    .. versionchanged:: 25.4.0
+       *member_validator* and *iterable_validator* can now be a list or tuple
+       of validators.
+    """
+    if isinstance(member_validator, (list, tuple)):
+        member_validator = and_(*member_validator)
+    if isinstance(iterable_validator, (list, tuple)):
+        iterable_validator = and_(*iterable_validator)
+    return _DeepIterable(member_validator, iterable_validator)
+
+
+@attrs(repr=False, slots=True, unsafe_hash=True)
+class _DeepMapping:
+    key_validator = attrib(validator=optional(is_callable()))
+    value_validator = attrib(validator=optional(is_callable()))
+    mapping_validator = attrib(validator=optional(is_callable()))
+
+    def __call__(self, inst, attr, value):
+        """
+        We use a callable class to be able to change the ``__repr__``.
+        """
+        if self.mapping_validator is not None:
+            self.mapping_validator(inst, attr, value)
+
+        for key in value:
+            if self.key_validator is not None:
+                self.key_validator(inst, attr, key)
+            if self.value_validator is not None:
+                self.value_validator(inst, attr, value[key])
+
+    def __repr__(self):
+        return f"<deep_mapping validator for objects mapping {self.key_validator!r} to {self.value_validator!r}>"
+
+
+def deep_mapping(
+    key_validator=None, value_validator=None, mapping_validator=None
+):
+    """
+    A validator that performs deep validation of a dictionary.
+
+    All validators are optional, but at least one of *key_validator* or
+    *value_validator* must be provided.
+
+    Args:
+        key_validator: Validator(s) to apply to dictionary keys.
+
+        value_validator: Validator(s) to apply to dictionary values.
+
+        mapping_validator:
+            Validator(s) to apply to top-level mapping attribute.
+
+    .. versionadded:: 19.1.0
+
+    .. versionchanged:: 25.4.0
+       *key_validator* and *value_validator* are now optional, but at least one
+       of them must be provided.
+
+    .. versionchanged:: 25.4.0
+       *key_validator*, *value_validator*, and *mapping_validator* can now be a
+       list or tuple of validators.
+
+    Raises:
+        TypeError: If any sub-validator fails on validation.
+
+        ValueError:
+            If neither *key_validator* nor *value_validator* is provided on
+            instantiation.
+    """
+    if key_validator is None and value_validator is None:
+        msg = (
+            "At least one of key_validator or value_validator must be provided"
+        )
+        raise ValueError(msg)
+
+    if isinstance(key_validator, (list, tuple)):
+        key_validator = and_(*key_validator)
+    if isinstance(value_validator, (list, tuple)):
+        value_validator = and_(*value_validator)
+    if isinstance(mapping_validator, (list, tuple)):
+        mapping_validator = and_(*mapping_validator)
+
+    return _DeepMapping(key_validator, value_validator, mapping_validator)
+
+
+@attrs(repr=False, frozen=True, slots=True)
+class _NumberValidator:
+    bound = attrib()
+    compare_op = attrib()
+    compare_func = attrib()
+
+    def __call__(self, inst, attr, value):
+        """
+        We use a callable class to be able to change the ``__repr__``.
+        """
+        if not self.compare_func(value, self.bound):
+            msg = f"'{attr.name}' must be {self.compare_op} {self.bound}: {value}"
+            raise ValueError(msg)
+
+    def __repr__(self):
+        return f"<Validator for x {self.compare_op} {self.bound}>"
+
+
+def lt(val):
+    """
+    A validator that raises `ValueError` if the initializer is called with a
+    number larger or equal to *val*.
+
+    The validator uses `operator.lt` to compare the values.
+
+    Args:
+        val: Exclusive upper bound for values.
+
+    .. versionadded:: 21.3.0
+    """
+    return _NumberValidator(val, "<", operator.lt)
+
+
+def le(val):
+    """
+    A validator that raises `ValueError` if the initializer is called with a
+    number greater than *val*.
+
+    The validator uses `operator.le` to compare the values.
+
+    Args:
+        val: Inclusive upper bound for values.
+
+    .. versionadded:: 21.3.0
+    """
+    return _NumberValidator(val, "<=", operator.le)
+
+
+def ge(val):
+    """
+    A validator that raises `ValueError` if the initializer is called with a
+    number smaller than *val*.
+
+    The validator uses `operator.ge` to compare the values.
+
+    Args:
+        val: Inclusive lower bound for values
+
+    .. versionadded:: 21.3.0
+    """
+    return _NumberValidator(val, ">=", operator.ge)
+
+
+def gt(val):
+    """
+    A validator that raises `ValueError` if the initializer is called with a
+    number smaller or equal to *val*.
+
+    The validator uses `operator.gt` to compare the values.
+
+    Args:
+       val: Exclusive lower bound for values
+
+    .. versionadded:: 21.3.0
+    """
+    return _NumberValidator(val, ">", operator.gt)
+
+
+@attrs(repr=False, frozen=True, slots=True)
+class _MaxLengthValidator:
+    max_length = attrib()
+
+    def __call__(self, inst, attr, value):
+        """
+        We use a callable class to be able to change the ``__repr__``.
+        """
+        if len(value) > self.max_length:
+            msg = f"Length of '{attr.name}' must be <= {self.max_length}: {len(value)}"
+            raise ValueError(msg)
+
+    def __repr__(self):
+        return f"<max_len validator for {self.max_length}>"
+
+
+def max_len(length):
+    """
+    A validator that raises `ValueError` if the initializer is called
+    with a string or iterable that is longer than *length*.
+
+    Args:
+        length (int): Maximum length of the string or iterable
+
+    .. versionadded:: 21.3.0
+    """
+    return _MaxLengthValidator(length)
+
+
+@attrs(repr=False, frozen=True, slots=True)
+class _MinLengthValidator:
+    min_length = attrib()
+
+    def __call__(self, inst, attr, value):
+        """
+        We use a callable class to be able to change the ``__repr__``.
+        """
+        if len(value) < self.min_length:
+            msg = f"Length of '{attr.name}' must be >= {self.min_length}: {len(value)}"
+            raise ValueError(msg)
+
+    def __repr__(self):
+        return f"<min_len validator for {self.min_length}>"
+
+
+def min_len(length):
+    """
+    A validator that raises `ValueError` if the initializer is called
+    with a string or iterable that is shorter than *length*.
+
+    Args:
+        length (int): Minimum length of the string or iterable
+
+    .. versionadded:: 22.1.0
+    """
+    return _MinLengthValidator(length)
+
+
+@attrs(repr=False, slots=True, unsafe_hash=True)
+class _SubclassOfValidator:
+    type = attrib()
+
+    def __call__(self, inst, attr, value):
+        """
+        We use a callable class to be able to change the ``__repr__``.
+        """
+        if not issubclass(value, self.type):
+            msg = f"'{attr.name}' must be a subclass of {self.type!r} (got {value!r})."
+            raise TypeError(
+                msg,
+                attr,
+                self.type,
+                value,
+            )
+
+    def __repr__(self):
+        return f"<subclass_of validator for type {self.type!r}>"
+
+
+def _subclass_of(type):
+    """
+    A validator that raises a `TypeError` if the initializer is called with a
+    wrong type for this particular attribute (checks are performed using
+    `issubclass` therefore it's also valid to pass a tuple of types).
+
+    Args:
+        type (type | tuple[type, ...]): The type(s) to check for.
+
+    Raises:
+        TypeError:
+            With a human readable error message, the attribute (of type
+            `attrs.Attribute`), the expected type, and the value it got.
+    """
+    return _SubclassOfValidator(type)
+
+
+@attrs(repr=False, slots=True, unsafe_hash=True)
+class _NotValidator:
+    validator = attrib()
+    msg = attrib(
+        converter=default_if_none(
+            "not_ validator child '{validator!r}' "
+            "did not raise a captured error"
+        )
+    )
+    exc_types = attrib(
+        validator=deep_iterable(
+            member_validator=_subclass_of(Exception),
+            iterable_validator=instance_of(tuple),
+        ),
+    )
+
+    def __call__(self, inst, attr, value):
+        try:
+            self.validator(inst, attr, value)
+        except self.exc_types:
+            pass  # suppress error to invert validity
+        else:
+            raise ValueError(
+                self.msg.format(
+                    validator=self.validator,
+                    exc_types=self.exc_types,
+                ),
+                attr,
+                self.validator,
+                value,
+                self.exc_types,
+            )
+
+    def __repr__(self):
+        return f"<not_ validator wrapping {self.validator!r}, capturing {self.exc_types!r}>"
+
+
+def not_(validator, *, msg=None, exc_types=(ValueError, TypeError)):
+    """
+    A validator that wraps and logically 'inverts' the validator passed to it.
+    It will raise a `ValueError` if the provided validator *doesn't* raise a
+    `ValueError` or `TypeError` (by default), and will suppress the exception
+    if the provided validator *does*.
+
+    Intended to be used with existing validators to compose logic without
+    needing to create inverted variants, for example, ``not_(in_(...))``.
+
+    Args:
+        validator: A validator to be logically inverted.
+
+        msg (str):
+            Message to raise if validator fails. Formatted with keys
+            ``exc_types`` and ``validator``.
+
+        exc_types (tuple[type, ...]):
+            Exception type(s) to capture. Other types raised by child
+            validators will not be intercepted and pass through.
+
+    Raises:
+        ValueError:
+            With a human readable error message, the attribute (of type
+            `attrs.Attribute`), the validator that failed to raise an
+            exception, the value it got, and the expected exception types.
+
+    .. versionadded:: 22.2.0
+    """
+    try:
+        exc_types = tuple(exc_types)
+    except TypeError:
+        exc_types = (exc_types,)
+    return _NotValidator(validator, msg, exc_types)
+
+
+@attrs(repr=False, slots=True, unsafe_hash=True)
+class _OrValidator:
+    validators = attrib()
+
+    def __call__(self, inst, attr, value):
+        for v in self.validators:
+            try:
+                v(inst, attr, value)
+            except Exception:  # noqa: BLE001, PERF203, S112
+                continue
+            else:
+                return
+
+        msg = f"None of {self.validators!r} satisfied for value {value!r}"
+        raise ValueError(msg)
+
+    def __repr__(self):
+        return f"<or validator wrapping {self.validators!r}>"
+
+
+def or_(*validators):
+    """
+    A validator that composes multiple validators into one.
+
+    When called on a value, it runs all wrapped validators until one of them is
+    satisfied.
+
+    Args:
+        validators (~collections.abc.Iterable[typing.Callable]):
+            Arbitrary number of validators.
+
+    Raises:
+        ValueError:
+            If no validator is satisfied. Raised with a human-readable error
+            message listing all the wrapped validators and the value that
+            failed all of them.
+
+    .. versionadded:: 24.1.0
+    """
+    vals = []
+    for v in validators:
+        vals.extend(v.validators if isinstance(v, _OrValidator) else [v])
+
+    return _OrValidator(tuple(vals))
@@ -0,0 +1,140 @@
+from types import UnionType
+from typing import (
+    Any,
+    AnyStr,
+    Callable,
+    Container,
+    ContextManager,
+    Iterable,
+    Mapping,
+    Match,
+    Pattern,
+    TypeVar,
+    overload,
+)
+
+from attrs import _ValidatorType
+from attrs import _ValidatorArgType
+
+_T = TypeVar("_T")
+_T1 = TypeVar("_T1")
+_T2 = TypeVar("_T2")
+_T3 = TypeVar("_T3")
+_T4 = TypeVar("_T4")
+_T5 = TypeVar("_T5")
+_T6 = TypeVar("_T6")
+_I = TypeVar("_I", bound=Iterable)
+_K = TypeVar("_K")
+_V = TypeVar("_V")
+_M = TypeVar("_M", bound=Mapping)
+
+def set_disabled(run: bool) -> None: ...
+def get_disabled() -> bool: ...
+def disabled() -> ContextManager[None]: ...
+
+# To be more precise on instance_of use some overloads.
+# If there are more than 3 items in the tuple then we fall back to Any
+@overload
+def instance_of(type: type[_T]) -> _ValidatorType[_T]: ...
+@overload
+def instance_of(type: tuple[type[_T]]) -> _ValidatorType[_T]: ...
+@overload
+def instance_of(
+    type: tuple[type[_T1], type[_T2]],
+) -> _ValidatorType[_T1 | _T2]: ...
+@overload
+def instance_of(
+    type: tuple[type[_T1], type[_T2], type[_T3]],
+) -> _ValidatorType[_T1 | _T2 | _T3]: ...
+@overload
+def instance_of(type: tuple[type, ...]) -> _ValidatorType[Any]: ...
+@overload
+def instance_of(type: UnionType) -> _ValidatorType[Any]: ...
+def optional(
+    validator: (
+        _ValidatorType[_T]
+        | list[_ValidatorType[_T]]
+        | tuple[_ValidatorType[_T], ...]
+    ),
+) -> _ValidatorType[_T | None]: ...
+def in_(options: Container[_T]) -> _ValidatorType[_T]: ...
+def and_(*validators: _ValidatorType[_T]) -> _ValidatorType[_T]: ...
+def matches_re(
+    regex: Pattern[AnyStr] | AnyStr,
+    flags: int = ...,
+    func: Callable[[AnyStr, AnyStr, int], Match[AnyStr] | None] | None = ...,
+) -> _ValidatorType[AnyStr]: ...
+def deep_iterable(
+    member_validator: _ValidatorArgType[_T],
+    iterable_validator: _ValidatorArgType[_I] | None = ...,
+) -> _ValidatorType[_I]: ...
+@overload
+def deep_mapping(
+    key_validator: _ValidatorArgType[_K],
+    value_validator: _ValidatorArgType[_V] | None = ...,
+    mapping_validator: _ValidatorArgType[_M] | None = ...,
+) -> _ValidatorType[_M]: ...
+@overload
+def deep_mapping(
+    key_validator: _ValidatorArgType[_K] | None = ...,
+    value_validator: _ValidatorArgType[_V] = ...,
+    mapping_validator: _ValidatorArgType[_M] | None = ...,
+) -> _ValidatorType[_M]: ...
+def is_callable() -> _ValidatorType[_T]: ...
+def lt(val: _T) -> _ValidatorType[_T]: ...
+def le(val: _T) -> _ValidatorType[_T]: ...
+def ge(val: _T) -> _ValidatorType[_T]: ...
+def gt(val: _T) -> _ValidatorType[_T]: ...
+def max_len(length: int) -> _ValidatorType[_T]: ...
+def min_len(length: int) -> _ValidatorType[_T]: ...
+def not_(
+    validator: _ValidatorType[_T],
+    *,
+    msg: str | None = None,
+    exc_types: type[Exception] | Iterable[type[Exception]] = ...,
+) -> _ValidatorType[_T]: ...
+@overload
+def or_(
+    __v1: _ValidatorType[_T1],
+    __v2: _ValidatorType[_T2],
+) -> _ValidatorType[_T1 | _T2]: ...
+@overload
+def or_(
+    __v1: _ValidatorType[_T1],
+    __v2: _ValidatorType[_T2],
+    __v3: _ValidatorType[_T3],
+) -> _ValidatorType[_T1 | _T2 | _T3]: ...
+@overload
+def or_(
+    __v1: _ValidatorType[_T1],
+    __v2: _ValidatorType[_T2],
+    __v3: _ValidatorType[_T3],
+    __v4: _ValidatorType[_T4],
+) -> _ValidatorType[_T1 | _T2 | _T3 | _T4]: ...
+@overload
+def or_(
+    __v1: _ValidatorType[_T1],
+    __v2: _ValidatorType[_T2],
+    __v3: _ValidatorType[_T3],
+    __v4: _ValidatorType[_T4],
+    __v5: _ValidatorType[_T5],
+) -> _ValidatorType[_T1 | _T2 | _T3 | _T4 | _T5]: ...
+@overload
+def or_(
+    __v1: _ValidatorType[_T1],
+    __v2: _ValidatorType[_T2],
+    __v3: _ValidatorType[_T3],
+    __v4: _ValidatorType[_T4],
+    __v5: _ValidatorType[_T5],
+    __v6: _ValidatorType[_T6],
+) -> _ValidatorType[_T1 | _T2 | _T3 | _T4 | _T5 | _T6]: ...
+@overload
+def or_(
+    __v1: _ValidatorType[Any],
+    __v2: _ValidatorType[Any],
+    __v3: _ValidatorType[Any],
+    __v4: _ValidatorType[Any],
+    __v5: _ValidatorType[Any],
+    __v6: _ValidatorType[Any],
+    *validators: _ValidatorType[Any],
+) -> _ValidatorType[Any]: ...
@@ -0,0 +1 @@
+uv
@@ -0,0 +1,199 @@
+Metadata-Version: 2.4
+Name: attrs
+Version: 26.1.0
+Summary: Classes Without Boilerplate
+Project-URL: Documentation, https://www.attrs.org/
+Project-URL: Changelog, https://www.attrs.org/en/stable/changelog.html
+Project-URL: GitHub, https://github.com/python-attrs/attrs
+Project-URL: Funding, https://github.com/sponsors/hynek
+Project-URL: Tidelift, https://tidelift.com/subscription/pkg/pypi-attrs?utm_source=pypi-attrs&utm_medium=pypi
+Author-email: Hynek Schlawack <hs@ox.cx>
+License-Expression: MIT
+License-File: LICENSE
+Keywords: attribute,boilerplate,class
+Classifier: Development Status :: 5 - Production/Stable
+Classifier: Programming Language :: Python :: 3.9
+Classifier: Programming Language :: Python :: 3.10
+Classifier: Programming Language :: Python :: 3.11
+Classifier: Programming Language :: Python :: 3.12
+Classifier: Programming Language :: Python :: 3.13
+Classifier: Programming Language :: Python :: 3.14
+Classifier: Programming Language :: Python :: Implementation :: CPython
+Classifier: Programming Language :: Python :: Implementation :: PyPy
+Classifier: Typing :: Typed
+Requires-Python: >=3.9
+Description-Content-Type: text/markdown
+
+<p align="center">
+  <a href="https://www.attrs.org/">
+    <img src="https://raw.githubusercontent.com/python-attrs/attrs/main/docs/_static/attrs_logo.svg" width="35%" alt="attrs" />
+  </a>
+</p>
+
+
+*attrs* is the Python package that will bring back the **joy** of **writing classes** by relieving you from the drudgery of implementing object protocols (aka [dunder methods](https://www.attrs.org/en/latest/glossary.html#term-dunder-methods)).
+Trusted by NASA for [Mars missions since 2020](https://github.com/readme/featured/nasa-ingenuity-helicopter)!
+
+Its main goal is to help you to write **concise** and **correct** software without slowing down your code.
+
+
+## Sponsors
+
+*attrs* would not be possible without our [amazing sponsors](https://github.com/sponsors/hynek).
+Especially those generously supporting us at the *The Organization* tier and higher:
+
+<!-- sponsor-break-begin -->
+
+<p align="center">
+
+<!-- [[[cog
+import pathlib, tomllib
+
+for sponsor in tomllib.loads(pathlib.Path("pyproject.toml").read_text())["tool"]["sponcon"]["sponsors"]:
+      print(f'<a href="{sponsor["url"]}"><img title="{sponsor["title"]}" src="https://www.attrs.org/en/26.1.0/_static/sponsors/{sponsor["img"]}" width="190" /></a>')
+]]] -->
+<a href="https://www.variomedia.de/"><img title="Variomedia AG" src="https://www.attrs.org/en/26.1.0/_static/sponsors/Variomedia.svg" width="190" /></a>
+<a href="https://tidelift.com/?utm_source=lifter&utm_medium=referral&utm_campaign=hynek"><img title="Tidelift" src="https://www.attrs.org/en/26.1.0/_static/sponsors/Tidelift.svg" width="190" /></a>
+<a href="https://kraken.tech/"><img title="Kraken Tech" src="https://www.attrs.org/en/26.1.0/_static/sponsors/Kraken.svg" width="190" /></a>
+<a href="https://privacy-solutions.org/"><img title="Privacy Solutions" src="https://www.attrs.org/en/26.1.0/_static/sponsors/Privacy-Solutions.svg" width="190" /></a>
+<a href="https://filepreviews.io/"><img title="FilePreviews" src="https://www.attrs.org/en/26.1.0/_static/sponsors/FilePreviews.svg" width="190" /></a>
+<a href="https://www.testmuai.com/?utm_medium=sponsor&utm_source=structlog"><img title="TestMu AI" src="https://www.attrs.org/en/26.1.0/_static/sponsors/TestMu-AI.svg" width="190" /></a>
+<a href="https://polar.sh/"><img title="Polar" src="https://www.attrs.org/en/26.1.0/_static/sponsors/Polar.svg" width="190" /></a>
+<!-- [[[end]]] -->
+
+</p>
+
+<!-- sponsor-break-end -->
+
+<p align="center">
+   <strong>Please consider <a href="https://github.com/sponsors/hynek">joining them</a> to help make <em>attrs</em>’s maintenance more sustainable!</strong>
+</p>
+
+<!-- teaser-end -->
+
+## Example
+
+*attrs* gives you a class decorator and a way to declaratively define the attributes on that class:
+
+<!-- code-begin -->
+
+```pycon
+>>> from attrs import asdict, define, make_class, Factory
+
+>>> @define
+... class SomeClass:
+...     a_number: int = 42
+...     list_of_numbers: list[int] = Factory(list)
+...
+...     def hard_math(self, another_number):
+...         return self.a_number + sum(self.list_of_numbers) * another_number
+
+
+>>> sc = SomeClass(1, [1, 2, 3])
+>>> sc
+SomeClass(a_number=1, list_of_numbers=[1, 2, 3])
+
+>>> sc.hard_math(3)
+19
+>>> sc == SomeClass(1, [1, 2, 3])
+True
+>>> sc != SomeClass(2, [3, 2, 1])
+True
+
+>>> asdict(sc)
+{'a_number': 1, 'list_of_numbers': [1, 2, 3]}
+
+>>> SomeClass()
+SomeClass(a_number=42, list_of_numbers=[])
+
+>>> C = make_class("C", ["a", "b"])
+>>> C("foo", "bar")
+C(a='foo', b='bar')
+```
+
+After *declaring* your attributes, *attrs* gives you:
+
+- a concise and explicit overview of the class's attributes,
+- a nice human-readable `__repr__`,
+- equality-checking methods,
+- an initializer,
+- and much more,
+
+*without* writing dull boilerplate code again and again and *without* runtime performance penalties.
+
+---
+
+This example uses *attrs*'s modern APIs that have been introduced in version 20.1.0, and the *attrs* package import name that has been added in version 21.3.0.
+The classic APIs (`@attr.s`, `attr.ib`, plus their serious-business aliases) and the `attr` package import name will remain **indefinitely**.
+
+Check out [*On The Core API Names*](https://www.attrs.org/en/latest/names.html) for an in-depth explanation!
+
+
+### Hate Type Annotations!?
+
+No problem!
+Types are entirely **optional** with *attrs*.
+Simply assign `attrs.field()` to the attributes instead of annotating them with types:
+
+```python
+from attrs import define, field
+
+@define
+class SomeClass:
+    a_number = field(default=42)
+    list_of_numbers = field(factory=list)
+```
+
+
+## Data Classes
+
+On the tin, *attrs* might remind you of `dataclasses` (and indeed, `dataclasses` [are a descendant](https://hynek.me/articles/import-attrs/) of *attrs*).
+In practice it does a lot more and is more flexible.
+For instance, it allows you to define [special handling of NumPy arrays for equality checks](https://www.attrs.org/en/stable/comparison.html#customization), allows more ways to [plug into the initialization process](https://www.attrs.org/en/stable/init.html#hooking-yourself-into-initialization), has a replacement for `__init_subclass__`, and allows for stepping through the generated methods using a debugger.
+
+For more details, please refer to our [comparison page](https://www.attrs.org/en/stable/why.html#data-classes), but generally speaking, we are more likely to commit crimes against nature to make things work that one would expect to work, but that are quite complicated in practice.
+
+
+## Project Information
+
+- [**Changelog**](https://www.attrs.org/en/stable/changelog.html)
+- [**Documentation**](https://www.attrs.org/)
+- [**PyPI**](https://pypi.org/project/attrs/)
+- [**Source Code**](https://github.com/python-attrs/attrs)
+- [**Contributing**](https://github.com/python-attrs/attrs/blob/main/.github/CONTRIBUTING.md)
+- [**Third-party Extensions**](https://github.com/python-attrs/attrs/wiki/Extensions-to-attrs)
+- **Get Help**: use the `python-attrs` tag on [Stack Overflow](https://stackoverflow.com/questions/tagged/python-attrs)
+
+
+### *attrs* for Enterprise
+
+Available as part of the [Tidelift Subscription](https://tidelift.com/?utm_source=lifter&utm_medium=referral&utm_campaign=hynek).
+
+The maintainers of *attrs* and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source packages you use to build your applications.
+Save time, reduce risk, and improve code health, while paying the maintainers of the exact packages you use.
+
+## Release Information
+
+### Backwards-incompatible Changes
+
+- Field aliases are now resolved *before* calling `field_transformer`, so transformers receive fully populated `Attribute` objects with usable `alias` values instead of `None`.
+  The new `Attribute.alias_is_default` flag indicates whether the alias was auto-generated (`True`) or explicitly set by the user (`False`).
+  [#1509](https://github.com/python-attrs/attrs/issues/1509)
+
+
+### Changes
+
+- Fix type annotations for `attrs.validators.optional()`, so it no longer rejects tuples with more than one validator.
+  [#1496](https://github.com/python-attrs/attrs/issues/1496)
+- The `attrs.validators.disabled()` contextmanager can now be nested.
+  [#1513](https://github.com/python-attrs/attrs/issues/1513)
+- Frozen classes can set `on_setattr=attrs.setters.NO_OP` in addition to `None`.
+  [#1515](https://github.com/python-attrs/attrs/issues/1515)
+- It's now possible to pass *attrs* **instances** in addition to *attrs* **classes** to `attrs.fields()`.
+  [#1529](https://github.com/python-attrs/attrs/issues/1529)
+
+
+
+---
+
+[Full changelog →](https://www.attrs.org/en/stable/changelog.html)
@@ -0,0 +1,37 @@
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+attr/_config.py,sha256=dGq3xR6fgZEF6UBt_L0T-eUHIB4i43kRmH0P28sJVw8,843
+attr/_funcs.py,sha256=Ix5IETTfz5F01F-12MF_CSFomIn2h8b67EVVz2gCtBE,16479
+attr/_make.py,sha256=H7OH2eWS5CnBzLUjNFE1WymfPrmF1r8fv2RPdt9MuYA,106129
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+attr/_typing_compat.pyi,sha256=XDP54TUn-ZKhD62TOQebmzrwFyomhUCoGRpclb6alRA,469
+attr/_version_info.py,sha256=w4R-FYC3NK_kMkGUWJlYP4cVAlH9HRaC-um3fcjYkHM,2222
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+attr/validators.pyi,sha256=gM1ZmHaBckyYWI2EirpRNzqm3B19cw5Iq6B4Kno9YCM,4087
+attrs-26.1.0.dist-info/INSTALLER,sha256=5hhM4Q4mYTT9z6QB6PGpUAW81PGNFrYrdXMj4oM_6ak,2
+attrs-26.1.0.dist-info/METADATA,sha256=TNQOaQ8jvzfLytNO_WdY4GLfHfB8hoM_fjzpW_H6OMw,8754
+attrs-26.1.0.dist-info/RECORD,,
+attrs-26.1.0.dist-info/REQUESTED,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0
+attrs-26.1.0.dist-info/WHEEL,sha256=QccIxa26bgl1E6uMy58deGWi-0aeIkkangHcxk2kWfw,87
+attrs-26.1.0.dist-info/licenses/LICENSE,sha256=iCEVyV38KvHutnFPjsbVy8q_Znyv-HKfQkINpj9xTp8,1109
+attrs/__init__.py,sha256=RxaAZNwYiEh-fcvHLZNpQ_DWKni73M_jxEPEftiq1Zc,1183
+attrs/__init__.pyi,sha256=2gV79g9UxJppGSM48hAZJ6h_MHb70dZoJL31ZNJeZYI,9416
+attrs/converters.py,sha256=8kQljrVwfSTRu8INwEk8SI0eGrzmWftsT7rM0EqyohM,76
+attrs/exceptions.py,sha256=ACCCmg19-vDFaDPY9vFl199SPXCQMN_bENs4DALjzms,76
+attrs/filters.py,sha256=VOUMZug9uEU6dUuA0dF1jInUK0PL3fLgP0VBS5d-CDE,73
+attrs/py.typed,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0
+attrs/setters.py,sha256=eL1YidYQV3T2h9_SYIZSZR1FAcHGb1TuCTy0E0Lv2SU,73
+attrs/validators.py,sha256=xcy6wD5TtTkdCG1f4XWbocPSO0faBjk5IfVJfP6SUj0,76
@@ -0,0 +1,4 @@
+Wheel-Version: 1.0
+Generator: hatchling 1.29.0
+Root-Is-Purelib: true
+Tag: py3-none-any
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 Hynek Schlawack and the attrs contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: MIT
+
+from attr import (
+    NOTHING,
+    Attribute,
+    AttrsInstance,
+    Converter,
+    Factory,
+    NothingType,
+    _make_getattr,
+    assoc,
+    cmp_using,
+    define,
+    evolve,
+    field,
+    fields,
+    fields_dict,
+    frozen,
+    has,
+    make_class,
+    mutable,
+    resolve_types,
+    validate,
+)
+from attr._make import ClassProps
+from attr._next_gen import asdict, astuple, inspect
+
+from . import converters, exceptions, filters, setters, validators
+
+
+__all__ = [
+    "NOTHING",
+    "Attribute",
+    "AttrsInstance",
+    "ClassProps",
+    "Converter",
+    "Factory",
+    "NothingType",
+    "__author__",
+    "__copyright__",
+    "__description__",
+    "__doc__",
+    "__email__",
+    "__license__",
+    "__title__",
+    "__url__",
+    "__version__",
+    "__version_info__",
+    "asdict",
+    "assoc",
+    "astuple",
+    "cmp_using",
+    "converters",
+    "define",
+    "evolve",
+    "exceptions",
+    "field",
+    "fields",
+    "fields_dict",
+    "filters",
+    "frozen",
+    "has",
+    "inspect",
+    "make_class",
+    "mutable",
+    "resolve_types",
+    "setters",
+    "validate",
+    "validators",
+]
+
+__getattr__ = _make_getattr(__name__)
@@ -0,0 +1,314 @@
+import sys
+
+from typing import (
+    Any,
+    Callable,
+    Mapping,
+    Sequence,
+    overload,
+    TypeVar,
+)
+
+# Because we need to type our own stuff, we have to make everything from
+# attr explicitly public too.
+from attr import __author__ as __author__
+from attr import __copyright__ as __copyright__
+from attr import __description__ as __description__
+from attr import __email__ as __email__
+from attr import __license__ as __license__
+from attr import __title__ as __title__
+from attr import __url__ as __url__
+from attr import __version__ as __version__
+from attr import __version_info__ as __version_info__
+from attr import assoc as assoc
+from attr import Attribute as Attribute
+from attr import AttrsInstance as AttrsInstance
+from attr import cmp_using as cmp_using
+from attr import converters as converters
+from attr import Converter as Converter
+from attr import evolve as evolve
+from attr import exceptions as exceptions
+from attr import Factory as Factory
+from attr import fields as fields
+from attr import fields_dict as fields_dict
+from attr import filters as filters
+from attr import has as has
+from attr import make_class as make_class
+from attr import NOTHING as NOTHING
+from attr import resolve_types as resolve_types
+from attr import setters as setters
+from attr import validate as validate
+from attr import validators as validators
+from attr import attrib, asdict as asdict, astuple as astuple
+from attr import NothingType as NothingType
+
+if sys.version_info >= (3, 11):
+    from typing import dataclass_transform
+else:
+    from typing_extensions import dataclass_transform
+
+_T = TypeVar("_T")
+_C = TypeVar("_C", bound=type)
+
+_EqOrderType = bool | Callable[[Any], Any]
+_ValidatorType = Callable[[Any, "Attribute[_T]", _T], Any]
+_CallableConverterType = Callable[[Any], Any]
+_ConverterType = _CallableConverterType | Converter[Any, Any]
+_ReprType = Callable[[Any], str]
+_ReprArgType = bool | _ReprType
+_OnSetAttrType = Callable[[Any, "Attribute[Any]", Any], Any]
+_OnSetAttrArgType = _OnSetAttrType | list[_OnSetAttrType] | setters._NoOpType
+_FieldTransformer = Callable[
+    [type, list["Attribute[Any]"]], list["Attribute[Any]"]
+]
+# FIXME: in reality, if multiple validators are passed they must be in a list
+# or tuple, but those are invariant and so would prevent subtypes of
+# _ValidatorType from working when passed in a list or tuple.
+_ValidatorArgType = _ValidatorType[_T] | Sequence[_ValidatorType[_T]]
+
+@overload
+def field(
+    *,
+    default: None = ...,
+    validator: None = ...,
+    repr: _ReprArgType = ...,
+    hash: bool | None = ...,
+    init: bool = ...,
+    metadata: Mapping[Any, Any] | None = ...,
+    converter: None = ...,
+    factory: None = ...,
+    kw_only: bool | None = ...,
+    eq: bool | None = ...,
+    order: bool | None = ...,
+    on_setattr: _OnSetAttrArgType | None = ...,
+    alias: str | None = ...,
+    type: type | None = ...,
+) -> Any: ...
+
+# This form catches an explicit None or no default and infers the type from the
+# other arguments.
+@overload
+def field(
+    *,
+    default: None = ...,
+    validator: _ValidatorArgType[_T] | None = ...,
+    repr: _ReprArgType = ...,
+    hash: bool | None = ...,
+    init: bool = ...,
+    metadata: Mapping[Any, Any] | None = ...,
+    converter: _ConverterType
+    | list[_ConverterType]
+    | tuple[_ConverterType, ...]
+    | None = ...,
+    factory: Callable[[], _T] | None = ...,
+    kw_only: bool | None = ...,
+    eq: _EqOrderType | None = ...,
+    order: _EqOrderType | None = ...,
+    on_setattr: _OnSetAttrArgType | None = ...,
+    alias: str | None = ...,
+    type: type | None = ...,
+) -> _T: ...
+
+# This form catches an explicit default argument.
+@overload
+def field(
+    *,
+    default: _T,
+    validator: _ValidatorArgType[_T] | None = ...,
+    repr: _ReprArgType = ...,
+    hash: bool | None = ...,
+    init: bool = ...,
+    metadata: Mapping[Any, Any] | None = ...,
+    converter: _ConverterType
+    | list[_ConverterType]
+    | tuple[_ConverterType, ...]
+    | None = ...,
+    factory: Callable[[], _T] | None = ...,
+    kw_only: bool | None = ...,
+    eq: _EqOrderType | None = ...,
+    order: _EqOrderType | None = ...,
+    on_setattr: _OnSetAttrArgType | None = ...,
+    alias: str | None = ...,
+    type: type | None = ...,
+) -> _T: ...
+
+# This form covers type=non-Type: e.g. forward references (str), Any
+@overload
+def field(
+    *,
+    default: _T | None = ...,
+    validator: _ValidatorArgType[_T] | None = ...,
+    repr: _ReprArgType = ...,
+    hash: bool | None = ...,
+    init: bool = ...,
+    metadata: Mapping[Any, Any] | None = ...,
+    converter: _ConverterType
+    | list[_ConverterType]
+    | tuple[_ConverterType, ...]
+    | None = ...,
+    factory: Callable[[], _T] | None = ...,
+    kw_only: bool | None = ...,
+    eq: _EqOrderType | None = ...,
+    order: _EqOrderType | None = ...,
+    on_setattr: _OnSetAttrArgType | None = ...,
+    alias: str | None = ...,
+    type: type | None = ...,
+) -> Any: ...
+@overload
+@dataclass_transform(field_specifiers=(attrib, field))
+def define(
+    maybe_cls: _C,
+    *,
+    these: dict[str, Any] | None = ...,
+    repr: bool = ...,
+    unsafe_hash: bool | None = ...,
+    hash: bool | None = ...,
+    init: bool = ...,
+    slots: bool = ...,
+    frozen: bool = ...,
+    weakref_slot: bool = ...,
+    str: bool = ...,
+    auto_attribs: bool = ...,
+    kw_only: bool = ...,
+    cache_hash: bool = ...,
+    auto_exc: bool = ...,
+    eq: bool | None = ...,
+    order: bool | None = ...,
+    auto_detect: bool = ...,
+    getstate_setstate: bool | None = ...,
+    on_setattr: _OnSetAttrArgType | None = ...,
+    field_transformer: _FieldTransformer | None = ...,
+    match_args: bool = ...,
+) -> _C: ...
+@overload
+@dataclass_transform(field_specifiers=(attrib, field))
+def define(
+    maybe_cls: None = ...,
+    *,
+    these: dict[str, Any] | None = ...,
+    repr: bool = ...,
+    unsafe_hash: bool | None = ...,
+    hash: bool | None = ...,
+    init: bool = ...,
+    slots: bool = ...,
+    frozen: bool = ...,
+    weakref_slot: bool = ...,
+    str: bool = ...,
+    auto_attribs: bool = ...,
+    kw_only: bool = ...,
+    cache_hash: bool = ...,
+    auto_exc: bool = ...,
+    eq: bool | None = ...,
+    order: bool | None = ...,
+    auto_detect: bool = ...,
+    getstate_setstate: bool | None = ...,
+    on_setattr: _OnSetAttrArgType | None = ...,
+    field_transformer: _FieldTransformer | None = ...,
+    match_args: bool = ...,
+) -> Callable[[_C], _C]: ...
+
+mutable = define
+
+@overload
+@dataclass_transform(frozen_default=True, field_specifiers=(attrib, field))
+def frozen(
+    maybe_cls: _C,
+    *,
+    these: dict[str, Any] | None = ...,
+    repr: bool = ...,
+    unsafe_hash: bool | None = ...,
+    hash: bool | None = ...,
+    init: bool = ...,
+    slots: bool = ...,
+    frozen: bool = ...,
+    weakref_slot: bool = ...,
+    str: bool = ...,
+    auto_attribs: bool = ...,
+    kw_only: bool = ...,
+    cache_hash: bool = ...,
+    auto_exc: bool = ...,
+    eq: bool | None = ...,
+    order: bool | None = ...,
+    auto_detect: bool = ...,
+    getstate_setstate: bool | None = ...,
+    on_setattr: _OnSetAttrArgType | None = ...,
+    field_transformer: _FieldTransformer | None = ...,
+    match_args: bool = ...,
+) -> _C: ...
+@overload
+@dataclass_transform(frozen_default=True, field_specifiers=(attrib, field))
+def frozen(
+    maybe_cls: None = ...,
+    *,
+    these: dict[str, Any] | None = ...,
+    repr: bool = ...,
+    unsafe_hash: bool | None = ...,
+    hash: bool | None = ...,
+    init: bool = ...,
+    slots: bool = ...,
+    frozen: bool = ...,
+    weakref_slot: bool = ...,
+    str: bool = ...,
+    auto_attribs: bool = ...,
+    kw_only: bool = ...,
+    cache_hash: bool = ...,
+    auto_exc: bool = ...,
+    eq: bool | None = ...,
+    order: bool | None = ...,
+    auto_detect: bool = ...,
+    getstate_setstate: bool | None = ...,
+    on_setattr: _OnSetAttrArgType | None = ...,
+    field_transformer: _FieldTransformer | None = ...,
+    match_args: bool = ...,
+) -> Callable[[_C], _C]: ...
+
+class ClassProps:
+    # XXX: somehow when defining/using enums Mypy starts looking at our own
+    # (untyped) code and causes tons of errors.
+    Hashability: Any
+    KeywordOnly: Any
+
+    is_exception: bool
+    is_slotted: bool
+    has_weakref_slot: bool
+    is_frozen: bool
+    # kw_only: ClassProps.KeywordOnly
+    kw_only: Any
+    collected_fields_by_mro: bool
+    added_init: bool
+    added_repr: bool
+    added_eq: bool
+    added_ordering: bool
+    # hashability: ClassProps.Hashability
+    hashability: Any
+    added_match_args: bool
+    added_str: bool
+    added_pickling: bool
+    on_setattr_hook: _OnSetAttrType | None
+    field_transformer: Callable[[Attribute[Any]], Attribute[Any]] | None
+
+    def __init__(
+        self,
+        is_exception: bool,
+        is_slotted: bool,
+        has_weakref_slot: bool,
+        is_frozen: bool,
+        # kw_only: ClassProps.KeywordOnly
+        kw_only: Any,
+        collected_fields_by_mro: bool,
+        added_init: bool,
+        added_repr: bool,
+        added_eq: bool,
+        added_ordering: bool,
+        # hashability: ClassProps.Hashability
+        hashability: Any,
+        added_match_args: bool,
+        added_str: bool,
+        added_pickling: bool,
+        on_setattr_hook: _OnSetAttrType,
+        field_transformer: Callable[[Attribute[Any]], Attribute[Any]],
+    ) -> None: ...
+    @property
+    def is_hashable(self) -> bool: ...
+
+def inspect(cls: type) -> ClassProps: ...
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: MIT
+
+from attr.converters import *  # noqa: F403
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: MIT
+
+from attr.exceptions import *  # noqa: F403
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: MIT
+
+from attr.filters import *  # noqa: F403
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: MIT
+
+from attr.setters import *  # noqa: F403
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: MIT
+
+from attr.validators import *  # noqa: F403
@@ -0,0 +1,25 @@
+from .converters import BaseConverter, Converter, GenConverter, UnstructureStrategy
+from .gen import override
+
+__all__ = (
+    "BaseConverter",
+    "Converter",
+    "GenConverter",
+    "UnstructureStrategy",
+    "global_converter",
+    "override",
+    "structure",
+    "structure_attrs_fromdict",
+    "structure_attrs_fromtuple",
+    "unstructure",
+)
+from cattrs import global_converter
+
+unstructure = global_converter.unstructure
+structure = global_converter.structure
+structure_attrs_fromtuple = global_converter.structure_attrs_fromtuple
+structure_attrs_fromdict = global_converter.structure_attrs_fromdict
+register_structure_hook = global_converter.register_structure_hook
+register_structure_hook_func = global_converter.register_structure_hook_func
+register_unstructure_hook = global_converter.register_unstructure_hook
+register_unstructure_hook_func = global_converter.register_unstructure_hook_func
@@ -0,0 +1,8 @@
+from cattrs.converters import (
+    BaseConverter,
+    Converter,
+    GenConverter,
+    UnstructureStrategy,
+)
+
+__all__ = ["BaseConverter", "Converter", "GenConverter", "UnstructureStrategy"]
@@ -0,0 +1,3 @@
+from cattrs.disambiguators import create_uniq_field_dis_func
+
+__all__ = ["create_uniq_field_dis_func"]
@@ -0,0 +1,3 @@
+from cattrs.dispatch import FunctionDispatch, MultiStrategyDispatch
+
+__all__ = ["FunctionDispatch", "MultiStrategyDispatch"]
@@ -0,0 +1,15 @@
+from cattrs.errors import (
+    BaseValidationError,
+    ClassValidationError,
+    ForbiddenExtraKeysError,
+    IterableValidationError,
+    StructureHandlerNotFoundError,
+)
+
+__all__ = [
+    "BaseValidationError",
+    "ClassValidationError",
+    "ForbiddenExtraKeysError",
+    "IterableValidationError",
+    "StructureHandlerNotFoundError",
+]
@@ -0,0 +1,21 @@
+from cattrs.cols import iterable_unstructure_factory as make_iterable_unstructure_fn
+from cattrs.gen import (
+    make_dict_structure_fn,
+    make_dict_unstructure_fn,
+    make_hetero_tuple_unstructure_fn,
+    make_mapping_structure_fn,
+    make_mapping_unstructure_fn,
+    override,
+)
+from cattrs.gen._consts import AttributeOverride
+
+__all__ = [
+    "AttributeOverride",
+    "make_dict_structure_fn",
+    "make_dict_unstructure_fn",
+    "make_hetero_tuple_unstructure_fn",
+    "make_iterable_unstructure_fn",
+    "make_mapping_structure_fn",
+    "make_mapping_unstructure_fn",
+    "override",
+]
@@ -0,0 +1,3 @@
+from cattrs.preconf import validate_datetime
+
+__all__ = ["validate_datetime"]
@@ -0,0 +1,5 @@
+"""Preconfigured converters for bson."""
+
+from cattrs.preconf.bson import BsonConverter, configure_converter, make_converter
+
+__all__ = ["BsonConverter", "configure_converter", "make_converter"]
@@ -0,0 +1,5 @@
+"""Preconfigured converters for the stdlib json."""
+
+from cattrs.preconf.json import JsonConverter, configure_converter, make_converter
+
+__all__ = ["JsonConverter", "configure_converter", "make_converter"]
@@ -0,0 +1,5 @@
+"""Preconfigured converters for msgpack."""
+
+from cattrs.preconf.msgpack import MsgpackConverter, configure_converter, make_converter
+
+__all__ = ["MsgpackConverter", "configure_converter", "make_converter"]
@@ -0,0 +1,5 @@
+"""Preconfigured converters for orjson."""
+
+from cattrs.preconf.orjson import OrjsonConverter, configure_converter, make_converter
+
+__all__ = ["OrjsonConverter", "configure_converter", "make_converter"]
@@ -0,0 +1,5 @@
+"""Preconfigured converters for pyyaml."""
+
+from cattrs.preconf.pyyaml import PyyamlConverter, configure_converter, make_converter
+
+__all__ = ["PyyamlConverter", "configure_converter", "make_converter"]
@@ -0,0 +1,5 @@
+"""Preconfigured converters for tomlkit."""
+
+from cattrs.preconf.tomlkit import TomlkitConverter, configure_converter, make_converter
+
+__all__ = ["TomlkitConverter", "configure_converter", "make_converter"]
@@ -0,0 +1,5 @@
+"""Preconfigured converters for ujson."""
+
+from cattrs.preconf.ujson import UjsonConverter, configure_converter, make_converter
+
+__all__ = ["UjsonConverter", "configure_converter", "make_converter"]
@@ -0,0 +1 @@
+uv
@@ -0,0 +1,164 @@
+Metadata-Version: 2.4
+Name: cattrs
+Version: 26.1.0
+Summary: Composable complex class support for attrs and dataclasses.
+Project-URL: Homepage, https://catt.rs
+Project-URL: Changelog, https://catt.rs/en/latest/history.html
+Project-URL: Bug Tracker, https://github.com/python-attrs/cattrs/issues
+Project-URL: Repository, https://github.com/python-attrs/cattrs
+Project-URL: Documentation, https://catt.rs/en/stable/
+Author-email: Tin Tvrtkovic <tinchester@gmail.com>
+License: MIT
+License-File: LICENSE
+Keywords: attrs,dataclasses,serialization
+Classifier: Development Status :: 5 - Production/Stable
+Classifier: Intended Audience :: Developers
+Classifier: License :: OSI Approved :: MIT License
+Classifier: Programming Language :: Python :: 3.10
+Classifier: Programming Language :: Python :: 3.11
+Classifier: Programming Language :: Python :: 3.12
+Classifier: Programming Language :: Python :: 3.13
+Classifier: Programming Language :: Python :: 3.14
+Classifier: Programming Language :: Python :: Implementation :: CPython
+Classifier: Programming Language :: Python :: Implementation :: PyPy
+Classifier: Typing :: Typed
+Requires-Python: >=3.10
+Requires-Dist: attrs>=25.4.0
+Requires-Dist: exceptiongroup>=1.1.1; python_version < '3.11'
+Requires-Dist: typing-extensions>=4.14.0
+Provides-Extra: bson
+Requires-Dist: pymongo>=4.4.0; extra == 'bson'
+Provides-Extra: cbor2
+Requires-Dist: cbor2>=5.4.6; extra == 'cbor2'
+Provides-Extra: msgpack
+Requires-Dist: msgpack>=1.0.5; extra == 'msgpack'
+Provides-Extra: msgspec
+Requires-Dist: msgspec>=0.19.0; (implementation_name == 'cpython') and extra == 'msgspec'
+Provides-Extra: orjson
+Requires-Dist: orjson>=3.11.3; (implementation_name == 'cpython') and extra == 'orjson'
+Provides-Extra: pyyaml
+Requires-Dist: pyyaml>=6.0; extra == 'pyyaml'
+Provides-Extra: tomlkit
+Requires-Dist: tomlkit>=0.11.8; extra == 'tomlkit'
+Provides-Extra: tomllib
+Requires-Dist: tomli-w>=1.1.0; extra == 'tomllib'
+Requires-Dist: tomli>=1.1.0; (python_version < '3.11') and extra == 'tomllib'
+Provides-Extra: ujson
+Requires-Dist: ujson>=5.10.0; extra == 'ujson'
+Description-Content-Type: text/markdown
+
+# *cattrs*: Flexible Object Serialization and Validation
+
+*Because validation belongs to the edges.*
+
+[![Documentation](https://img.shields.io/badge/Docs-Read%20The%20Docs-black)](https://catt.rs/)
+[![License: MIT](https://img.shields.io/badge/license-MIT-C06524)](https://github.com/hynek/stamina/blob/main/LICENSE)
+[![PyPI](https://img.shields.io/pypi/v/cattrs.svg)](https://pypi.python.org/pypi/cattrs)
+[![Supported Python Versions](https://img.shields.io/pypi/pyversions/cattrs.svg)](https://github.com/python-attrs/cattrs)
+[![Downloads](https://static.pepy.tech/badge/cattrs/month)](https://pepy.tech/project/cattrs)
+[![Coverage](https://img.shields.io/endpoint?url=https://gist.githubusercontent.com/Tinche/22405310d6a663164d894a2beab4d44d/raw/covbadge.json)](https://github.com/python-attrs/cattrs/actions/workflows/main.yml)
+
+---
+
+<!-- begin-teaser -->
+
+**cattrs** is a Swiss Army knife for (un)structuring and validating data in Python.
+In practice, that means it converts **unstructured dictionaries** into **proper classes** and back, while **validating** their contents.
+
+<!-- end-teaser -->
+
+
+## Example
+
+<!-- begin-example -->
+
+_cattrs_ works best with [_attrs_](https://www.attrs.org/) classes, and [dataclasses](https://docs.python.org/3/library/dataclasses.html) where simple (un-)structuring works out of the box, even for nested data, without polluting your data model with serialization details:
+
+```python
+>>> from attrs import define
+>>> from cattrs import structure, unstructure
+>>> @define
+... class C:
+...     a: int
+...     b: list[str]
+>>> instance = structure({'a': 1, 'b': ['x', 'y']}, C)
+>>> instance
+C(a=1, b=['x', 'y'])
+>>> unstructure(instance)
+{'a': 1, 'b': ['x', 'y']}
+```
+
+<!-- end-teaser -->
+<!-- end-example -->
+
+Have a look at [*Why *cattrs*?*](https://catt.rs/en/latest/why.html) for more examples!
+
+<!-- begin-why -->
+
+## Features
+
+### Recursive Unstructuring
+
+- _attrs_ classes and dataclasses are converted into dictionaries in a way similar to `attrs.asdict()`, or into tuples in a way similar to `attrs.astuple()`.
+- Enumeration instances are converted to their values.
+- Other types are let through without conversion. This includes types such as integers, dictionaries, lists and instances of non-_attrs_ classes.
+- Custom converters for any type can be registered using `register_unstructure_hook`.
+
+
+### Recursive Structuring
+
+Converts unstructured data into structured data, recursively, according to your specification given as a type.
+The following types are supported:
+
+- `typing.Optional[T]` and its 3.10+ form, `T | None`.
+- `list[T]`, `typing.List[T]`, `typing.MutableSequence[T]`, `typing.Sequence[T]` convert to lists.
+- `tuple` and `typing.Tuple` (both variants, `tuple[T, ...]` and `tuple[X, Y, Z]`).
+- `set[T]`, `typing.MutableSet[T]`, and `typing.Set[T]` convert to sets.
+- `frozenset[T]`, and `typing.FrozenSet[T]` convert to frozensets.
+- `dict[K, V]`, `typing.Dict[K, V]`, `typing.MutableMapping[K, V]`, and `typing.Mapping[K, V]` convert to dictionaries.
+- [`typing.TypedDict`](https://docs.python.org/3/library/typing.html#typing.TypedDict), both ordinary and generic.
+- [`typing.NewType`](https://docs.python.org/3/library/typing.html#newtype)
+- [PEP 695 type aliases](https://docs.python.org/3/library/typing.html#type-aliases) on 3.12+
+- _attrs_ classes with simple attributes and the usual `__init__`[^simple].
+- All _attrs_ classes and dataclasses with the usual `__init__`, if their complex attributes have type metadata.
+- Unions of supported _attrs_ classes, given that all of the classes have a unique field.
+- Unions of anything, if you provide a disambiguation function for it.
+- Custom converters for any type can be registered using `register_structure_hook`.
+
+[^simple]: Simple attributes are attributes that can be assigned unstructured data, like numbers, strings, and collections of unstructured data.
+
+
+### Batteries Included
+
+_cattrs_ comes with pre-configured converters for a number of serialization libraries, including JSON (standard library, [_orjson_](https://pypi.org/project/orjson/), [UltraJSON](https://pypi.org/project/ujson/)), [_msgpack_](https://pypi.org/project/msgpack/), [_cbor2_](https://pypi.org/project/cbor2/), [_bson_](https://pypi.org/project/bson/), [PyYAML](https://pypi.org/project/PyYAML/), [_tomlkit_](https://pypi.org/project/tomlkit/) and [_msgspec_](https://pypi.org/project/msgspec/) (supports only JSON at this time).
+
+For details, see the [cattrs.preconf package](https://catt.rs/en/stable/preconf.html).
+
+
+## Design Decisions
+
+_cattrs_ is based on a few fundamental design decisions:
+
+- Un/structuring rules are separate from the models.
+  This allows models to have a one-to-many relationship with un/structuring rules, and to create un/structuring rules for models which you do not own and you cannot change.
+  (_cattrs_ can be configured to use un/structuring rules from models using the [`use_class_methods` strategy](https://catt.rs/en/latest/strategies.html#using-class-specific-structure-and-unstructure-methods).)
+- Invent as little as possible; reuse existing ordinary Python instead.
+  For example, _cattrs_ did not have a custom exception type to group exceptions until the sanctioned Python [`exceptiongroups`](https://docs.python.org/3/library/exceptions.html#ExceptionGroup).
+  A side-effect of this design decision is that, in a lot of cases, when you're solving _cattrs_ problems you're actually learning Python instead of learning _cattrs_.
+- Resist the temptation to guess.
+  If there are two ways of solving a problem, _cattrs_ should refuse to guess and let the user configure it themselves.
+
+A foolish consistency is the hobgoblin of little minds, so these decisions can and are sometimes broken, but they have proven to be a good foundation.
+
+
+<!-- end-why -->
+
+## Credits
+
+Major credits to Hynek Schlawack for creating [attrs](https://attrs.org) and its predecessor, [characteristic](https://github.com/hynek/characteristic).
+
+_cattrs_ is tested with [Hypothesis](http://hypothesis.readthedocs.io/en/latest/), by David R. MacIver.
+
+_cattrs_ is benchmarked using [perf](https://github.com/haypo/perf) and [pytest-benchmark](https://pytest-benchmark.readthedocs.io/en/latest/index.html).
+
+This package was created with [Cookiecutter](https://github.com/audreyr/cookiecutter) and the [`audreyr/cookiecutter-pypackage`](https://github.com/audreyr/cookiecutter-pypackage) project template.
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@@ -0,0 +1,4 @@
+Wheel-Version: 1.0
+Generator: hatchling 1.28.0
+Root-Is-Purelib: true
+Tag: py3-none-any
@@ -0,0 +1,11 @@
+
+MIT License
+
+Copyright (c) 2016, Tin Tvrtković
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
@@ -0,0 +1,57 @@
+from typing import Final
+
+from .converters import BaseConverter, Converter, GenConverter, UnstructureStrategy
+from .errors import (
+    AttributeValidationNote,
+    BaseValidationError,
+    ClassValidationError,
+    ForbiddenExtraKeysError,
+    IterableValidationError,
+    IterableValidationNote,
+    StructureHandlerNotFoundError,
+)
+from .gen import override
+from .types import SimpleStructureHook
+from .v import transform_error
+
+__all__ = [
+    "AttributeValidationNote",
+    "BaseConverter",
+    "BaseValidationError",
+    "ClassValidationError",
+    "Converter",
+    "ForbiddenExtraKeysError",
+    "GenConverter",
+    "IterableValidationError",
+    "IterableValidationNote",
+    "SimpleStructureHook",
+    "StructureHandlerNotFoundError",
+    "UnstructureStrategy",
+    "get_structure_hook",
+    "get_unstructure_hook",
+    "global_converter",
+    "override",
+    "register_structure_hook",
+    "register_structure_hook_func",
+    "register_unstructure_hook",
+    "register_unstructure_hook_func",
+    "structure",
+    "structure_attrs_fromdict",
+    "structure_attrs_fromtuple",
+    "transform_error",
+    "unstructure",
+]
+
+#: The global converter. Prefer creating your own if customizations are required.
+global_converter: Final = Converter()
+
+unstructure = global_converter.unstructure
+structure = global_converter.structure
+structure_attrs_fromtuple = global_converter.structure_attrs_fromtuple
+structure_attrs_fromdict = global_converter.structure_attrs_fromdict
+register_structure_hook = global_converter.register_structure_hook
+register_structure_hook_func = global_converter.register_structure_hook_func
+register_unstructure_hook = global_converter.register_unstructure_hook
+register_unstructure_hook_func = global_converter.register_unstructure_hook_func
+get_structure_hook: Final = global_converter.get_structure_hook
+get_unstructure_hook: Final = global_converter.get_unstructure_hook
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Christoph	4ca1b0cce9	Update version to 2026.6.201	2026-06-22 06:50:56 +00:00
Christoph	6051260a8d	Merge pull request 'Fix single-line brace formatting to preserve internal whitespace' (#31 ) from bug_fixing into main / build_and_publish (release) Successful in 33s Details Reviewed-on: #31	2026-06-22 06:50:16 +00:00
Christoph Brandau	dfe15dd3db	Fix single-line brace formatting to preserve internal whitespace The formatter now calculates and passes explicit leading and trailing whitespace around expression content to the `_brace` method. This ensures correct rendering of single-line expressions that include braces.	2026-06-22 08:49:22 +02:00
Christoph	5d1c402d2a	Update version to 2026.6.200	2026-06-22 06:34:00 +00:00
Christoph	88f834ae79	Merge pull request 'Fix Bug for Formatting' (#30 ) from bug_fixing into main / build_and_publish (release) Successful in 37s Details Reviewed-on: #30	2026-06-22 06:32:26 +00:00
Christoph Brandau	3b233389c8	Fix Tcl formatting bug by adjusting formatter options	2026-06-22 08:29:48 +02:00
Christoph	67bd9de18a	Update version to 2026.6.100	2026-06-18 19:03:03 +00:00
Christoph	495b7b7a07	Update package.json / build_and_publish (release) Failing after 14m37s Details	2026-06-18 19:01:47 +00:00
Christoph	8b39c4d250	Update version to 2026.6.100	2026-06-18 18:41:28 +00:00
Christoph	49e8cdd7df	Merge pull request 'Bug fixing' (#29 ) from bug_fixing into main / build_and_publish (release) Has been cancelled Details Reviewed-on: #29	2026-06-18 18:39:23 +00:00
Christoph Brandau	f60c4563e4	Delegate TCL folding to server, fix bugs, and enhance stability - Move TCL folding range computation from client to language server, avoiding duplicate regions. - Serialize language server restarts to prevent multiple server instances running concurrently. - Pin server-side Python dependencies to specific minor versions for improved stability and predictability. - Make debug server connection non-fatal, allowing the language server to start even if the debugger isn't attached. - Optimize semantic token generation by caching Tclint plugin commands.	2026-06-18 20:38:47 +02:00
Christoph Brandau	3ad3847045	add new features and fix bugs	2026-06-18 17:31:51 +02:00
Christoph Brandau	41f331d4c4	add updates libs	2026-06-18 17:21:58 +02:00
Christoph	91ce762570	Update version to 2025.9.200	2025-09-01 13:24:13 +00:00
Christoph	d60d3ec942	Update package.json / build_and_publish (release) Successful in 40s Details	2025-09-01 13:22:58 +00:00
Christoph	e52722e353	Update README.md	2025-09-01 13:21:36 +00:00
				`@@ -1 +0,0 @@`
				`{"root":["./src/extension.ts","./src/common/handlers.ts","./src/common/log/logging.ts"],"version":"5.7.2"}`