async method output in typedef

[4r7d3c0]

no promise is printed right now

<method async name="askSingle" return="string">
    <arg type="(string|!_reloquent.Question)" name="question">
      The question to present to the user.
    </arg>
    <arg type="number" name="timeout" opt>
      How long to wait before rejecting the promise. Waits forever by default.
    </arg>
    Ask user a question via the CLI. Returns the answer to the question. 
    If a timeout is passed, the promise will expire after the specified 
    number of milliseconds if the answer was not given.
  </method>