# tf.keras.optimizers.get

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| [![](https://www.tensorflow.org/images/GitHub-Mark-32px.png) View source on GitHub](https://github.com/keras-team/keras/tree/v2.13.1/keras/optimizers/__init__.py#L256-L321) |

Retrieves a Keras Optimizer instance.

#### View aliases


**Main aliases**

[`tf.optimizers.get`](https://www.tensorflow.org/api_docs/python/tf/keras/optimizers/get)
**Compat aliases for migration**

See
[Migration guide](https://www.tensorflow.org/guide/migrate) for
more details.

\`tf.compat.v1.keras.optimizers.get\`

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    tf.keras.optimizers.get(
        identifier, **kwargs
    )

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| ## Args ||
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| `identifier` | Optimizer identifier, one of - String: name of an optimizer <br /> - Dictionary: configuration dictionary. - Keras Optimizer instance (it will be returned unchanged). - TensorFlow Optimizer instance (it will be wrapped as a Keras Optimizer). |

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| ## Returns ||
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| A Keras Optimizer instance. ||

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| ## Raises ||
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| `ValueError` | If `identifier` cannot be interpreted. |

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