_and_its_params</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">priors</span><span class="o">.</span><span class="n">keys</span><span class="p">()</span>  <span class="c1"># type of priors</span>
<span class="go">dict_keys([&#39;merger_rate_density&#39;, &#39;source_frame_masses&#39;, &#39;spin&#39;, &#39;geocent_time&#39;, &#39;ra&#39;, &#39;phase&#39;, &#39;psi&#39;, &#39;theta_jn&#39;])</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">priors</span><span class="p">[</span><span clas