docs: public Cluster withClusterSecurityGroups(ClusterSecurityGroupMembership... clusterSecurityGroups) {
          if (this.clusterSecurityGroups == null) {
              setClusterSecurityGroups(new com.amazonaws.internal.SdkInternalList<ClusterSecurityGroupMembership>(clusterSecurityGroups.length));
          }
          for (ClusterSecurityGroupMembership ele : clusterSecurityGroups) {
              this.clusterSecurityGroups.add(ele);
          }
          return this;
      }