Response Unmarshaller for DisableGateway operation
Inheritance: JsonResponseUnmarshaller
 public static DisableGatewayResponseUnmarshaller GetInstance()
 {
   if (instance == null)
   {
     instance = new DisableGatewayResponseUnmarshaller();
   }
   return instance;
 }
 public static DisableGatewayResponseUnmarshaller GetInstance()
 {
     if (instance == null)
     {
         instance = new DisableGatewayResponseUnmarshaller();
     }
     return(instance);
 }