"Zif::Actions::Sequence#callback (method)">#callback</a></span> on <code>self</code></p>


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      <pre class="code"><span class="info file"># File 'lib/zif/actions/sequence.rb', line 105</span>

<span class='kw'>def</span> <span class='id identifier rubyid_perform_callback'>perform_callback</span>
  <span class='ivar'>@callback</span><span class='period