/span> <span class='lbrace'>{</span><span class='rbrace'>}</span>
  <span class='id identifier rubyid_keys_to_overwrite'>keys_to_overwrite</span><span class='period'>.</span><span class='id identifier rubyid_transform_keys!'>transform_keys!</span><span class='lparen'>(</span><span class='op'>&amp;</span><span class='symbol'>:to_sym</span><span class='rparen'>)</span>
  <span class='id identifier rubyid_old_values'>old_values</span> <span class='op'>=</span> <span class='lbrace'>{</span><span class='rbrace'>