public String getMarker() {
        return this.marker;
    }
<p>
An optional pagination token provided by a previous <code>DescribeDBClusterParameterGroups</code> request. If
this parameter is specified, the response includes only records beyond the marker, up to the value specified by
<code>MaxRecords</code>.
</p>

@return An optional pagination token provided by a previous <code>DescribeDBClusterParameterGroups</code>
        request. If this parameter is specified, the response includes only records beyond the marker, up to the
        value specified by <code>MaxRecords</code>.
aws-java-sdk-neptune/src/main/java/com/amazonaws/services/neptune/model/DescribeDBClusterParameterGroupsResult.java