Values.ClusterSecurityGroupSourceDescribes a security group.
type nonrec t = {clusterSecurityGroupName : String_.t option;The name of the cluster security group to which the operation was applied.
*)description : String_.t option;A description of the security group.
*)eC2SecurityGroups : EC2SecurityGroupList.t option;A list of EC2 security groups that are permitted to access clusters associated with this cluster security group.
*)iPRanges : IPRangeList.t option;A list of IP ranges (CIDR blocks) that are permitted to access clusters associated with this cluster security group.
*)}