---
title: testCallBytes
description: Test request. Returns back received bytes
image: https://docs.madelineproto.xyz/favicons/android-chrome-256x256.png
---
# Method: testCallBytes  
[Back to methods index](index.md)


YOU CANNOT USE THIS METHOD IN MADELINEPROTO


Test request. Returns back received bytes

### Parameters:

| Name     |    Type       | Required | Description |
|----------|---------------|----------|-------------|
|x|[bytes](../types/bytes.md) | Yes|Bytes to return|


### Return type: [TestBytes](../types/TestBytes.md)