code: public DescribeVpnGatewaysRequest withVpnGatewayIds(String... vpnGatewayIds) {
          if (this.vpnGatewayIds == null) {
              setVpnGatewayIds(new com.amazonaws.internal.SdkInternalList<String>(vpnGatewayIds.length));
          }
          for (String ele : vpnGatewayIds) {
              this.vpnGatewayIds.add(ele);
          }
          return this;
      }
docs: <p>
  One or more virtual private gateway IDs.
  </p>
  <p>
  Default: Describes all your virtual private gateways.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setVpnGatewayIds(java.util.Collection)} or {@link #withVpnGatewayIds(java.util.Collection)} if you want
  to override the existing values.
  </p>
  
  @param vpnGatewayIds
  One or more virtual private gateway IDs.</p>
  <p>
  Default: Describes all your virtual private gateways.
  @return Returns a reference to this object so that method calls can be chained together.