code: function setBlocking(blocking) {
      var out = process.stdout, err = process.stderr;
      [out, err].forEach(function (stream) {
          if (stream._handle && stream.isTTY && chek_1.isFunction(stream._handle.setBlocking))
              stream._handle.setBlocking(blocking);
      });
  }
docs: Set Blocking
  : Sets handle blocking for stdout, stderr.
  
  TypeScript version of:
  @see https://github.com/yargs/set-blocking/blob/master/index.js
  
  @param blocking toggles blocking.