---
orphan: true
---

# {py:mod}`_algopy_testing.mutable`

```{py:module} _algopy_testing.mutable
```

```{autodoc2-docstring} _algopy_testing.mutable
:allowtitles:
```

## Module Contents

### Classes

````{list-table}
:class: autosummary longtable
:align: left

* - {py:obj}`MutableBytes <_algopy_testing.mutable.MutableBytes>`
  - ```{autodoc2-docstring} _algopy_testing.mutable.MutableBytes
    :summary:
    ```
````

### Functions

````{list-table}
:class: autosummary longtable
:align: left

* - {py:obj}`set_item_on_mutate <_algopy_testing.mutable.set_item_on_mutate>`
  - ```{autodoc2-docstring} _algopy_testing.mutable.set_item_on_mutate
    :summary:
    ```
* - {py:obj}`set_attr_on_mutate <_algopy_testing.mutable.set_attr_on_mutate>`
  - ```{autodoc2-docstring} _algopy_testing.mutable.set_attr_on_mutate
    :summary:
    ```
* - {py:obj}`add_mutable_callback <_algopy_testing.mutable.add_mutable_callback>`
  - ```{autodoc2-docstring} _algopy_testing.mutable.add_mutable_callback
    :summary:
    ```
````

### API

````{py:class} MutableBytes()
:canonical: _algopy_testing.mutable.MutableBytes

```{autodoc2-docstring} _algopy_testing.mutable.MutableBytes
```

```{rubric} Initialization
```

```{autodoc2-docstring} _algopy_testing.mutable.MutableBytes.__init__
```

````

````{py:function} set_item_on_mutate(container: object, index: object, value: _algopy_testing.mutable.TItem) -> _algopy_testing.mutable.TItem
:canonical: _algopy_testing.mutable.set_item_on_mutate

```{autodoc2-docstring} _algopy_testing.mutable.set_item_on_mutate
```
````

````{py:function} set_attr_on_mutate(parent: object, name: str, value: _algopy_testing.mutable.TItem) -> _algopy_testing.mutable.TItem
:canonical: _algopy_testing.mutable.set_attr_on_mutate

```{autodoc2-docstring} _algopy_testing.mutable.set_attr_on_mutate
```
````

````{py:function} add_mutable_callback(on_mutate: collections.abc.Callable[[typing.Any], None], value: _algopy_testing.mutable.TItem) -> _algopy_testing.mutable.TItem
:canonical: _algopy_testing.mutable.add_mutable_callback

```{autodoc2-docstring} _algopy_testing.mutable.add_mutable_callback
```
````