title: Tensorflow: How to get all variables from rnn_cell.BasicLSTM & rnn_cell.MultiRNNCell
body: <p>I have a setup where I need to initialize an LSTM after the main initialization which uses <code>tf.initialize_all_variables()</code>. I.e. I want to call <code>tf.initialize_variables([var_list])</code> </p>
  
  <p>Is there way to collect all the internal trainable variables for both:</p>
  
  <ul>
  <li>rnn_cell.BasicLSTM</li>
  <li>rnn_cell.MultiRNNCell</li>
  </ul>
  
  <p>so that I can initialize <strong>JUST</strong> these parameters?</p>
  
  <p>The main reason I want this is because I do not want to re-initialize some trained values from earlier.</p>