# tf_agents.specs.tensor_spec.to_placeholder

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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/specs/tensor_spec.py#L118-L129) |

Creates a placeholder from TensorSpec.

    tf_agents.specs.tensor_spec.to_placeholder(
        spec, outer_dims=()
    )

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| ## Args ||
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| `spec` | instance of TensorSpec |
| `outer_dims` | optional leading dimensions of the placeholder. |

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| ## Returns ||
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| An instance of tf.placeholder. ||

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