  <span class='ivar'>@return_url</span>         <span class='op'>=</span> <span class='id identifier rubyid_attrs'>attrs</span><span class='lbracket'>[</span><span class='symbol'>:return_url</span><span class='rbracket'>]</span>          <span class='op'>||</span> <span class='kw'>self</span><span class='period'>.</span><span class='id identifier rubyid_class'>class</span><span class='period'>.</span><span class='id identifier rubyid_return_url'>return_url</span>
  <span class='ivar'>@callback</span>       