public java.util.List<GroupConfigurationItem> getConfiguration() {
        return configuration;
    }
<p>
A configuration associates the resource group with an Amazon Web Services service and specifies how the service
can interact with the resources in the group. A configuration is an array of <a>GroupConfigurationItem</a>
elements. For details about the syntax of service configurations, see <a
href="https://docs.aws.amazon.com/ARG/latest/APIReference/about-slg.html">Service configurations for Resource
Groups</a>.
</p>
<note>
<p>
A resource group can contain either a <code>Configuration</code> or a <code>ResourceQuery</code>, but not both.
</p>
</note>

@return A configuration associates the resource group with an Amazon Web Services service and specifies how the
        service can interact with the resources in the group. A configuration is an array of
        <a>GroupConfigurationItem</a> elements. For details about the syntax of service configurations, see <a
        href="https://docs.aws.amazon.com/ARG/latest/APIReference/about-slg.html">Service configurations for
        Resource Groups</a>.</p> <note>
        <p>
        A resource group can contain either a <code>Configuration</code> or a <code>ResourceQuery</code>, but not
        both.
        </p>
aws-java-sdk-resourcegroups/src/main/java/com/amazonaws/services/resourcegroups/model/CreateGroupRequest.java