n>
<span class="sd">            |     input (:direction: == &#39;inverse&#39;) and </span>
<span class="sd">            |     output (:direction: == &#39;forward&#39;)</span>
<span class="sd">        :parameters:</span>
<span class="sd">            | None or dict, optional</span>
<span class="sd">            | Set of model parameters.</span>
<span class="sd">            |   - None: defaults to luxpy.cam._CAM18SL_PARAMETERS </span>
<span class="sd">            |    (see references below)</span>
<span class="