public void setRequestId(String requestId) {
        this.requestId = requestId;
    }
<p>
The unique identifier of the Gremlin query.
</p>

@param requestId
       The unique identifier of the Gremlin query.
aws-java-sdk-neptunedata/src/main/java/com/amazonaws/services/neptunedata/model/ExecuteGremlinQueryResult.java