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Flatten a tensor.
Aliases:
tf.keras.backend.flatten(x)
Arguments:
x: A tensor or variable.
Returns:
A tensor, reshaped into 1-D
Example:
>>> b = tf.constant([[1, 2], [3, 4]])
>>> b
<tf.Tensor: id=102, shape=(2, 2), dtype=int32, numpy=
array([[1, 2],
[3, 4]], dtype=int32)>
>>> tf.keras.backend.flatten(b)
<tf.Tensor: id=105, shape=(4,), dtype=int32,
numpy=array([1, 2, 3, 4], dtype=int32)>