es shoul dbe mapped</span>
<span class="sd">    format : {&quot;stockholm&quot;, &quot;fasta&quot;}</span>
<span class="sd">        Format of alignment file</span>
<span class="sd">    target_seq : str, optional (default: None)</span>
<span class="sd">        Identifier of sequence around which the index</span>
<span class="sd">        mapping will be centered. If None, first sequence</span>
<span class="sd">        in alignment will be used.</span>

<span class="sd">    Returns</span>
<span class="sd">    