>lammps_date</strong> (<a class="reference external" href="https://docs.python.org/3/library/datetime.html#datetime.date" title="(in Python v3.11)"><em>datetime.date</em></a><em> or </em><em>None</em><em>, </em><em>optional</em>) – The date version of the LAMMPS executable.  If None, will be identified
from the lammps_command (default is None).</p></li>
</ul>
</dd>
<dt class="field-even">Returns<span class="colon">:</span></dt>
<dd class="field-even"><p><p>Dictionary of results consisting of keys:</p>
<ul