@Override
    public java.util.concurrent.Future<DescribeVirtualGatewaysResult> describeVirtualGatewaysAsync(
            com.amazonaws.handlers.AsyncHandler<DescribeVirtualGatewaysRequest, DescribeVirtualGatewaysResult> asyncHandler) {

        return describeVirtualGatewaysAsync(new DescribeVirtualGatewaysRequest(), asyncHandler);
    }
Simplified method form for invoking the DescribeVirtualGateways operation with an AsyncHandler.

@see #describeVirtualGatewaysAsync(DescribeVirtualGatewaysRequest, com.amazonaws.handlers.AsyncHandler)
aws-java-sdk-directconnect/src/main/java/com/amazonaws/services/directconnect/AmazonDirectConnectAsyncClient.java