// @module: commonjs
// @Filename: voidAsNonAmbiguousReturnType_0.ts
export function mkdirSync(path: string, mode?: number): void;
export function mkdirSync(path: string, mode?: string): void {}

// @Filename: voidAsNonAmbiguousReturnType_1.ts
///<reference path='voidAsNonAmbiguousReturnType_0.ts'/>
import fs = require("./voidAsNonAmbiguousReturnType_0");

function main() {
 fs.mkdirSync('test'); // should not error - return types are the same
}