span><span class="identifier">resize</span><span class="special">(</span><span class="number">2</span><span class="special">);</span> <a class="co" name="geometry.reference.models.model_multi_linestring.c4" href="model_multi_linestring.html#geometry.reference.models.model_multi_linestring.c5"><img src="../../../../../../../doc/src/images/callouts/3.png" alt="3" border="0"></a>

    <span class="identifier">bg</span><span class="special">::</span><span class="identifier">append</span><span class="special">(<