an class="n">v_ptrb</span><span class="p">:</span> <span class="n">np</span><span class="o">.</span><span class="n">ndarray</span><span class="p">,</span>
    <span class="n">t</span><span class="p">:</span> <span class="n">np</span><span class="o">.</span><span class="n">ndarray</span><span class="p">,</span>
    <span class="n">hamiltonian_function</span><span class="p">:</span> <span class="n">Callable</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span>
    <span class="n