an class='kw'>def</span> <span class='id identifier rubyid_initialize'>initialize</span><span class='lparen'>(</span><span class='id identifier rubyid_model'>model</span><span class='rparen'>)</span>
  <span class='ivar'>@model</span> <span class='op'>=</span> <span class='id identifier rubyid_model'>model</span>
  <span class='ivar'>@transactions</span> <span class='op'>||=</span> <span class='lbracket'>[</span><span class='rbracket'>]</span>
  <span class='id identifier rubyid_update_transactions'>update_