[p-timeout] introduce typings (#18480)

types/p-timeout/index.d.ts

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+// Type definitions for p-timeout 1.2
+// Project: https://github.com/sindresorhus/p-timeout#readme
+// Definitions by: BendingBender <https://github.com/BendingBender>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+export = pTimeout;
+
+declare function pTimeout<T>(input: Promise<T>, ms: number, message?: string | pTimeout.TimeoutError): Promise<T>;
+declare function pTimeout<T, R>(input: Promise<T>, ms: number, fallback: () => R | Promise<R>): Promise<T | R>;
+
+declare namespace pTimeout {
+    class TimeoutError extends Error {
+        readonly name: 'TimeoutError';
+        constructor(message?: string);
+    }
+}

types/p-timeout/p-timeout-tests.ts

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+/// <reference types="node" />
+
+import pTimeout = require('p-timeout');
+
+const delayedPromise: () => Promise<string> = () => new Promise(resolve => setTimeout(() => resolve('foo'), 200));
+
+let str: string;
+let num: number;
+pTimeout(delayedPromise(), 50).then(() => 'foo');
+pTimeout(delayedPromise(), 50, () => {
+    return pTimeout(delayedPromise(), 300);
+});
+pTimeout(delayedPromise(), 50).then(res => str = res);
+pTimeout(delayedPromise(), 50, 'error').then(res => str = res);
+pTimeout(delayedPromise(), 50, new pTimeout.TimeoutError('error')).then(res => str = res);
+pTimeout(delayedPromise(), 50, () => Promise.resolve(10)).then(res => {
+    if (typeof res === 'string') {
+        str = res;
+    } else {
+        num = res;
+    }
+});
+pTimeout(delayedPromise(), 50, () => 10).then(res => {
+    if (typeof res === 'string') {
+        str = res;
+    } else {
+        num = res;
+    }
+});

types/p-timeout/tsconfig.json

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+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "p-timeout-tests.ts"
+    ]
+}

types/p-timeout/tslint.json

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+{ "extends": "dtslint/dt.json" }