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tf.keras.backend.int_shape

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Returns the shape of tensor or variable as a tuple of int or None entries.

Arguments
x Tensor or variable.
Returns
A tuple of integers (or None entries).

Examples:

from keras import backend as K
input = K.placeholder(shape=(2, 4, 5))
K.int_shape(input)
(2, 4, 5)
val = np.array([[1, 2], [3, 4]])
kvar = K.variable(value=val)
K.int_shape(kvar)
(2, 2)

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Code samples licensed under the Apache 2.0 License.
https://www.tensorflow.org/versions/r1.15/api_docs/python/tf/keras/backend/int_shape