# tf_agents.policies.utils.InfoFields

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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/policies/utils.py#L73-L93) |

Strings which can be used in the policy info fields.

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| ## Class Variables ||
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| BANDIT_POLICY_TYPE | `'bandit_policy_type'` |
| CHOSEN_ARM_FEATURES | `'chosen_arm_features'` |
| LOG_PROBABILITY | `'log_probability'` |
| MULTIOBJECTIVE_SCALARIZED_PREDICTED_REWARDS_MEAN | `'multiobjective_scalarized_predicted_rewards_mean'` |
| PREDICTED_REWARDS_MEAN | `'predicted_rewards_mean'` |
| PREDICTED_REWARDS_OPTIMISTIC | `'predicted_rewards_optimistic'` |
| PREDICTED_REWARDS_SAMPLED | `'predicted_rewards_sampled'` |

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