---
title: "ClikaRT::nn::Identity"
sidebar_label: "Identity"
description: "Returns its input unchanged: it keeps a slot in a container where a module is expected (a skipped normalization, a disabled projection) without changing the data flow."
---

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**Header:** `ClikaRT/nn/containers.h`  
**Inherits:** [`ClikaRT::nn::Module`](./Module.md)

Returns its input unchanged: it keeps a slot in a container where a module is expected (a skipped normalization, a disabled projection) without changing the data flow.

## Member functions

### Identity() {#Identity}

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`explicit` **`Identity`**([`IdentityOptions`](./IdentityOptions.md) `options` `=` `{}`)

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Constructs the module from [`options`](./Identity.md#options) (every default when omitted).

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Declared in `ClikaRT/nn/containers.h`, line 217

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### forward() {#forward}

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[`Tensor`](../Tensor.md) **`forward`**([`Tensor`](../Tensor.md) `input`) `const`

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[`forward_impl`](./Identity.md#forward), unwrapped (it cannot fail).

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Declared in `ClikaRT/nn/containers.h`, line 223

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### operator()() {#operator-call}

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[`Tensor`](../Tensor.md) **`operator()`**([`Tensor`](../Tensor.md) `input`) `const`

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Same as [`forward`](./Identity.md#forward).

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Declared in `ClikaRT/nn/containers.h`, line 227

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### options() {#options}

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`const` [`IdentityOptions`](./IdentityOptions.md)`&` **`options`**() `const`

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The settings this module was constructed with.

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Declared in `ClikaRT/nn/containers.h`, line 231

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