title: Bings Map API needs getTMC, not described on documentation
body: <p>I'm trying to use the Bings Map API, but keeps getting the error:
  <a href="https://msdn.microsoft.com/en-us/library/hh441726" rel="nofollow">https://msdn.microsoft.com/en-us/library/hh441726</a></p>
  
  <pre><code>getTMCs: This parameter value has an invalid format
  </code></pre>
  
  <p>Looking through the doc's says nothing about the parameter getTMCs.</p>