Add types for inflation (#35199)

types/inflation/index.d.ts

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+// Type definitions for inflation 2.0
+// Project: https://github.com/stream-utils/inflation#readme
+// Definitions by: Remco Haszing <https://github.com/remcohaszing>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+/// <reference types="node" />
+
+import { Readable } from 'stream';
+import { ZlibOptions } from 'zlib';
+
+export = inflate;
+
+/**
+ * Automatically unzip an HTTP stream.
+ *
+ * @returns a stream that emits inflated data from the given stream.
+ */
+declare function inflate(req: Readable, options?: inflate.Options): Readable;
+
+declare namespace inflate {
+    interface Options extends ZlibOptions {
+        /**
+         * The encoding of the stream. If not given, will look in `stream.headers['content-encoding']`.
+         */
+        gzip?: 'deflate' | 'gzip' | 'identity';
+    }
+}

types/inflation/inflation-tests.ts

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+import { createServer } from 'http';
+
+import * as inflate from 'inflation';
+
+createServer((req, res) => {
+    inflate(req).pipe(res);
+});

types/inflation/tsconfig.json

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

types/inflation/tslint.json

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