>            radius_init:</span>
<span class="sd">                Initialization for radius of zero level-set of the hat.</span>

<span class="sd">            exponent:</span>
<span class="sd">                Exponent of the rationals forming the hat.</span>

<span class="sd">        &quot;&quot;&quot;</span>
        <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">()</span>

        <span class="bp">self</span><span class="o">.</s