code: @Override
      public java.util.concurrent.Future<ListTrafficPolicyInstancesResult> listTrafficPolicyInstancesAsync(
              com.amazonaws.handlers.AsyncHandler<ListTrafficPolicyInstancesRequest, ListTrafficPolicyInstancesResult> asyncHandler) {
  
          return listTrafficPolicyInstancesAsync(new ListTrafficPolicyInstancesRequest(), asyncHandler);
      }
docs: Simplified method form for invoking the ListTrafficPolicyInstances operation with an AsyncHandler.
  
  @see #listTrafficPolicyInstancesAsync(ListTrafficPolicyInstancesRequest, com.amazonaws.handlers.AsyncHandler)