<p>Data that processed by the function 
<code>pre_process</code>.</p></td>
    </tr>
    <tr>
      <th>max_ram</th>
      <td><p>A value of the maximum size of the list of 
CrossingWorkSpace instance.</p></td>
    </tr>
    <tr>
      <th>target_unit</th>
      <td><p>The target unit, i.e., 'Gb', 'Tb' and  'Pb'.
The default value is 'Gb'.</p></td>
    </tr>
    </table>
    
    <h2 class="hasAnchor" id="value"><a class="anchor" href="#value"></a>Value</h2>

    <p>A NULL value if there is no issue raised.