Add localtunnel type definitions

types/localtunnel/index.d.ts

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+// Type definitions for localtunnel v1.9.1
+// Project: https://github.com/vladhrapov/typings
+// Definitions by: Vladyslav Khrapov <https://github.com/vladhrapov>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+declare function localtunnel(
+    port: number,
+    callback: localtunnel.TunnelCallback
+): localtunnel.Tunnel;
+
+declare function localtunnel(
+    port: number,
+    opt: localtunnel.TunnelConfig,
+    callback: localtunnel.TunnelCallback
+): localtunnel.Tunnel;
+
+declare namespace localtunnel {
+    export type TunnelCallback = (
+        err: string,
+        tunnel?: localtunnel.Tunnel
+    ) => void;
+
+    export interface TunnelConfig {
+        host?: string;
+        subdomain?: string;
+        port?: number;
+        local_host?: string;
+    }
+
+    export interface Tunnel {
+        url: string;
+        tunnel_cluster: TunnelCluster;
+        open(err: string, tunnel?: localtunnel.Tunnel): void;
+        close(): void;
+    }
+
+    export interface TunnelCluster {
+        domain: string;
+    }
+
+    const prototype: {};
+}
+
+export = localtunnel;

types/localtunnel/localtunnel-tests.ts

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+import localtunnel = require('localtunnel');
+
+let tunnel: localtunnel.Tunnel;
+
+tunnel = localtunnel(3000, () => {});
+tunnel = localtunnel(
+    3000,
+    { host: '', local_host: '', port: 3000, subdomain: '' },
+    () => {}
+);

types/localtunnel/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",
+        "localtunnel-tests.ts"
+    ]
+}

types/localtunnel/tslint.json

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