public java.util.List<ClusterSecurityGroup> getClusterSecurityGroups() {
        if (clusterSecurityGroups == null) {
            clusterSecurityGroups = new com.amazonaws.internal.SdkInternalList<ClusterSecurityGroup>();
        }
        return clusterSecurityGroups;
    }
<p>
A list of <a>ClusterSecurityGroup</a> instances.
</p>

@return A list of <a>ClusterSecurityGroup</a> instances.
aws-java-sdk-redshift/src/main/java/com/amazonaws/services/redshift/model/DescribeClusterSecurityGroupsResult.java