---
title: "Unflatten"
sidebar_label: "Unflatten"
description: "The clika_runtime.nn Unflatten class."
---

<!-- Generated by tools/api_reference/generate_api_docs.py. Do not edit. -->

Unflatten(dim, unflattened_size)

    Splits the dimension ``dim`` into ``sizes``, whose product must equal its
    extent; a view when the layout permits.

    The module form of ``clika_runtime.unflatten``: construct it once with the
    settings, then call it like a function.

    Args:
        dim: the dimension to split; negative counts from the end.
        unflattened_size: the extents the dimension splits into.
    

## `__init__`

```python
__init__(self, dim: 'int', unflattened_size: 'int | Sequence[int]') -> 'None'
```

Initialize self.  See help(type(self)) for accurate signature.

## `extra_repr`

```python
extra_repr(self) -> 'str'
```

extra_repr() -> str

One line of per-class detail for :meth:`__repr__`; a layer prints
its geometry here (``in_features=64, out_features=256``).

## `forward`

```python
forward(self, input: 'Tensor') -> 'Tensor'
```

forward(input) -> Tensor

Runs ``clika_runtime.unflatten`` on ``input`` with the stored settings;
returns a new tensor.