Added type definitions for proxy-from-env 1.0 (#35881)

types/proxy-from-env/index.d.ts

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+// Type definitions for proxy-from-env 1.0
+// Project: https://github.com/Rob--W/proxy-from-env#readme
+// Definitions by: JasonHK <https://github.com/JasonHK>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+/**
+ * Takes an input URL and returns the desired proxy URL. If no proxy is set, an
+ * empty string is returned.
+ * @param url The URL
+ * @returns The URL of the proxy that should handle the request to the given
+ *          URL.
+ */
+export function getProxyForUrl(url: string): string;

types/proxy-from-env/proxy-from-env-tests.ts

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+import { getProxyForUrl } from "proxy-from-env";
+
+// $ExpectType string
+getProxyForUrl("http://microsoft.github.io/TypeSearch/");

types/proxy-from-env/tsconfig.json

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

types/proxy-from-env/tslint.json

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