code: public void setNatGatewayIds(java.util.Collection<String> natGatewayIds) {
          if (natGatewayIds == null) {
              this.natGatewayIds = null;
              return;
          }
  
          this.natGatewayIds = new com.amazonaws.internal.SdkInternalList<String>(natGatewayIds);
      }
docs: <p>
  One or more NAT gateway IDs.
  </p>
  
  @param natGatewayIds
  One or more NAT gateway IDs.