ubyid_dockerfile'>dockerfile</span> <span class='op'>=</span> <span class='id identifier rubyid_metadata'>metadata</span><span class='period'>.</span><span class='id identifier rubyid_fetch'>fetch</span><span class='lparen'>(</span><span class='symbol'>:dockerfile</span><span class='rparen'>)</span>

      <span class='id identifier rubyid_out'>out</span><span class='period'>.</span><span class='id identifier rubyid_puts'>puts</span> <span class='tstring'><span class='tstring_beg'>&quot;</span><span class='