l be used. If not includes or</span>
<span class="sd">        excludes are defined, then by default all atoms will be included.</span>

<span class="sd">        Args:</span>
<span class="sd">            n_atoms(int): Number of atoms.</span>
<span class="sd">            include(list of ints or None): The atomic indices to include, or</span>
<span class="sd">                None if no specific includes made.</span>
<span class="sd">            exclude(list of ints or None): The atomic indices to exclude, or</