raph.getTopology().getSchema(&quot;A&quot;).get().getVertexLabel(&quot;A&quot;).get().getProperties().values());</b>
<b class="fc">&nbsp;        this.sqlgGraph.getTopology().getSchema(&quot;A&quot;).get().getVertexLabel(&quot;A&quot;).get().ensureIndexExists(IndexType.UNIQUE, properties);</b>
<b class="fc">&nbsp;        this.sqlgGraph.tx().commit();</b>
&nbsp;
<b class="fc">&nbsp;        Connection conn = this.sqlgGraph.tx().getConnection();</b>
<b class="pc">&nbsp;        try (Statement statement = conn.cr