           centers are defined, the SOAP output will be created for all</span>
<span class="sd">                atoms in the system. When calculating SOAP for multiple</span>
<span class="sd">                systems, provide the centers as a list for each system.</span>
<span class="sd">            indices (list): Indices of atoms for which the derivatives will be</span>
<span class="sd">                computed for.</span>
<span class="sd">            attach (bool): Controls the behaviour of centers define