tf.keras.backend.foldr

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Reduce elems using fn to combine them from right to left.

tf.keras.backend.foldr(
    fn, elems, initializer=None, name=None
)

Arguments:

• fn: Callable that will be called upon each element in elems and an accumulator, for instance lambda acc, x: acc + x
• elems: tensor
• initializer: The first value used (elems[-1] in case of None)
• name: A string name for the foldr node in the graph

Returns:

Same type and shape as initializer