s</span><span class='rparen'>)</span>
  <span class='kw'>return</span> <span class='kw'>nil</span> <span class='kw'>unless</span> <span class='id identifier rubyid_attributes'>attributes</span><span class='period'>.</span><span class='id identifier rubyid_is_a?'>is_a?</span><span class='lparen'>(</span><span class='const'>Hash</span><span class='rparen'>)</span>
  <span class='id identifier rubyid_attributes'>attributes</span> <span class='op'>=</span> <span class='id identifier rubyid_attributes'>attribute