docs: public DescribeNatGatewaysResult withNatGateways(NatGateway... natGateways) {
          if (this.natGateways == null) {
              setNatGateways(new com.amazonaws.internal.SdkInternalList<NatGateway>(natGateways.length));
          }
          for (NatGateway ele : natGateways) {
              this.natGateways.add(ele);
          }
          return this;
      }