tf.keras.backend.foldr

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

Defined in tensorflow/python/keras/_impl/keras/backend.py.

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

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