@Override
    public java.util.concurrent.Future<ListGatewaysResult> listGatewaysAsync(
            com.amazonaws.handlers.AsyncHandler<ListGatewaysRequest, ListGatewaysResult> asyncHandler) {

        return listGatewaysAsync(new ListGatewaysRequest(), asyncHandler);
    }
Simplified method form for invoking the ListGateways operation with an AsyncHandler.

@see #listGatewaysAsync(ListGatewaysRequest, com.amazonaws.handlers.AsyncHandler)
aws-java-sdk-storagegateway/src/main/java/com/amazonaws/services/storagegateway/AbstractAWSStorageGatewayAsync.java