# tf.keras.losses.serialize

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| [![](https://www.tensorflow.org/images/GitHub-Mark-32px.png) View source on GitHub](https://github.com/keras-team/keras/tree/v2.14.0/keras/losses.py#L2871-L2893) |

Serializes loss function or `Loss` instance.

#### View aliases


**Main aliases**

[`tf.losses.serialize`](https://www.tensorflow.org/api_docs/python/tf/keras/losses/serialize)

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    tf.keras.losses.serialize(
        loss, use_legacy_format=False
    )

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| ## Args ||
|---|---|
| `loss` | A Keras `Loss` instance or a loss function. |
| `use_legacy_format` | Boolean, whether to use the legacy serialization format. Defaults to `False`. |

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| ## Returns ||
|---|---|
| Loss configuration dictionary. ||

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