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      <pre class="code"><span class="info file"># File 'lib/rrtf/colour.rb', line 120</span>

<span class='kw'>def</span> <span class='id identifier rubyid_add'>add</span><span class='lparen'>(</span><span class='id identifier rubyid_colour'>colour</span><span class='rparen'>)</span>
   <span class='kw'>if</span> <span class='id identifier rubyid_colour'>colour</