">x</code> along with other information to <code>sa</code>.
    This other information is defined by the implementation of the archive.
    Typically this information is that which is required by a corresponding
    Loading Archive type to properly restore the value of <code>x</code>.
    <p>
    Returns a reference to <code>sa</code>. 
  </dd>
  <dt><h4><code>
    sa.save_binary(u, count)
  </code></h4></dt>
  <dd>
    Appends to the archive <code style="white-space: normal">size_t(count)</code> bytes foun