# tf_agents.train.actor.eval_metrics

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| [![](https://www.tensorflow.org/images/GitHub-Mark-32px.png) View source on GitHub](https://github.com/tensorflow/agents/blob/v0.19.0/tf_agents/train/actor.py#L251-L256) |

Utilitiy to create metrics often used during policy evaluation.

    tf_agents.train.actor.eval_metrics(
        buffer_size
    )

### Used in the notebooks

| Used in the tutorials |
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| - [SAC minitaur with the Actor-Learner API](https://www.tensorflow.org/agents/tutorials/7_SAC_minitaur_tutorial) |