n class="c1"># ldv1t : input int, optional</span>
            <span class="c1">#     Default: p</span>
            <span class="c1"># ldv2t : input int, optional</span>
            <span class="c1">#     Default: p</span>
            <span class="c1"># credit : input int, optional</span>
            <span class="c1">#     Default: 0</span>
            <span class="c1">#</span>
            <span class="c1"># Returns</span>
            <span class="c1"># -------</span>
            <span class="c1"># x11 : ran