code: public void setCustomerGatewayIds(java.util.Collection<String> customerGatewayIds) {
          if (customerGatewayIds == null) {
              this.customerGatewayIds = null;
              return;
          }
  
          this.customerGatewayIds = new com.amazonaws.internal.SdkInternalList<String>(customerGatewayIds);
      }
docs: <p>
  One or more customer gateway IDs.
  </p>
  <p>
  Default: Describes all your customer gateways.
  </p>
  
  @param customerGatewayIds
  One or more customer gateway IDs.</p>
  <p>
  Default: Describes all your customer gateways.