lass="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">sky_lines_scale</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">initial_values</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">[False]</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">spec_min