      <span class="sd">&quot;&quot;&quot; process inputs</span>

<span class="sd">        Args:</span>
<span class="sd">            args (list): [string, string_len, string2, string2_len, ...]</span>
<span class="sd">                e.g. string (Variable): [batch_size, dim], string_len (ndarray): [batch_size]</span>

<span class="sd">        Returns:</span>
<span class="sd">            Variable: [batch_size, output_dim], None</span>

<span class="sd">        &quot;&quot;&quot;</span>
        <span class="n"