# tf.keras.backend.all

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|---|---|
| [![](https://www.tensorflow.org/images/tf_logo_32px.png) TensorFlow 1 version](https://www.tensorflow.org/versions/r1.15/api_docs/python/tf/keras/backend/all) | [![](https://www.tensorflow.org/images/GitHub-Mark-32px.png) View source on GitHub](https://github.com/tensorflow/tensorflow/blob/v2.0.0/tensorflow/python/keras/backend.py#L2136-L2149) |

Bitwise reduction (logical AND).

#### View aliases


**Compat aliases for migration**

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

[`tf.compat.v1.keras.backend.all`](https://www.tensorflow.org/api_docs/python/tf/keras/backend/all)

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    tf.keras.backend.all(
        x, axis=None, keepdims=False
    )

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| ## Arguments ||
|---|---|
| `x` | Tensor or variable. |
| `axis` | axis along which to perform the reduction. |
| `keepdims` | whether the drop or broadcast the reduction axes. |

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| ## Returns ||
|---|---|
| A uint8 tensor (0s and 1s). ||

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