 the empirically determined Hamiltonian mean</span>
<span class="sd">        value. It takes as input the values of placeholder variables. It</span>
<span class="sd">        passes those values into the Rigetti method run() when num_samples</span>
<span class="sd">        !=0. When num_samples=0, WavefunctionSimulator is used to calculate</span>
<span class="sd">        the output mean value exactly.</span>

<span class="sd">        Parameters</span>
<span class="sd">        ----------</span>
<span class="s