public String getRootGroup() {
        return this.rootGroup;
    }
<p>
Gets the test suite root group. This is a required parameter. For updating or creating the latest qualification
suite, if <code>intendedForQualification</code> is set to true, <code>rootGroup</code> can be an empty string. If
<code>intendedForQualification</code> is false, <code>rootGroup</code> cannot be an empty string. If
<code>rootGroup</code> is empty, and <code>intendedForQualification</code> is set to true, all the qualification
tests are included, and the configuration is default.
</p>
<p>
For a qualification suite, the minimum length is 0, and the maximum is 2048. For a non-qualification suite, the
minimum length is 1, and the maximum is 2048.
</p>

@return Gets the test suite root group. This is a required parameter. For updating or creating the latest
        qualification suite, if <code>intendedForQualification</code> is set to true, <code>rootGroup</code> can
        be an empty string. If <code>intendedForQualification</code> is false, <code>rootGroup</code> cannot be
        an empty string. If <code>rootGroup</code> is empty, and <code>intendedForQualification</code> is set to
        true, all the qualification tests are included, and the configuration is default.</p>
        <p>
        For a qualification suite, the minimum length is 0, and the maximum is 2048. For a non-qualification
        suite, the minimum length is 1, and the maximum is 2048.
aws-java-sdk-iotdeviceadvisor/src/main/java/com/amazonaws/services/iotdeviceadvisor/model/SuiteDefinitionConfiguration.java