MadelineProto/docs/API_docs/constructors/keyboardButtonCallback.md

## Constructor: keyboardButtonCallback  

### Attributes:

| Name     |    Type       | Required |
|----------|:-------------:|---------:|
|text|[string](../types/string.md) | Required|
|data|[bytes](../types/bytes.md) | Required|
### Type: 

[KeyboardButton](../types/KeyboardButton.md)
### Example:

```
$keyboardButtonCallback = ['_' => keyboardButtonCallback', 'text' => string, 'data' => bytes, ];
```