an class="n">methods</span><span class="o">.</span><span class="n">non_interacting</span><span class="o">.</span><span class="n">propagate</span><span class="p">(</span>
        <span class="n">s</span><span class="p">,</span> <span class="n">state</span><span class="p">,</span> <span class="n">v_ptrb</span><span class="p">,</span> <span class="n">t</span><span class="p">,</span> <span class="n">hamiltonian</span><span class="p">,</span> <span class="n">restricted</span><span class="p">,</span> <span class=