[</span><span class="s1">&#39;source_frame_masses&#39;</span><span class="p">][</span><span class="s1">&#39;binary_masses_BBH_popI_II_powerlaw_gaussian&#39;</span><span class="p">]</span><span class="o">.</span><span class="n">keys</span><span class="p">()</span>  <span class="c1"># parameters of binary_masses_BBH_popI_II_powerlaw_gaussian</span>
<span class="go">dict_keys([&#39;mminbh&#39;, &#39;mmaxbh&#39;, &#39;alpha&#39;, &#39;mu_g&#39;, &#39;sigma_g&#39;, &#39;lambda_peak&#39;, &#39;delta_m&#39;, &#39;