title: Mercurial: alias with arguments
body: <p>I want to create an alias so that when I run:</p>
  
  <pre><code>hg pushbranch &lt;&lt;SOME_BRANCH&gt;&gt;
  </code></pre>
  
  <p>it aliases to:</p>
  
  <pre><code>hg push -b &lt;&lt;SOME_BRANCH&gt;&gt;
  </code></pre>
  
  <p>Where <code>SOME_BRANCH</code> is the name of a branch I wish to push.  I can create an alias in my <code>.hgrc</code>, but don't know how I could supply an argument to the alias.</p>