tff.types.structure_from_tensor_type_tree

Constructs a structure from a type_spec tree of tff.TensorTypes.

tff.types.structure_from_tensor_type_tree(
    fn: Callable[[tff.types.TensorType], object],
    type_spec
) -> object

Args
`fn`	A callable used to generate the elements with which to fill the resulting structure. `fn` will be called exactly once per leaf `tff.TensorType` in the order they appear in the `type_spec` structure.
`type_spec`	A TFF type or value convertible to TFF type. Once converted, `type_spec` must be a `tff.TensorType` or `tff.StructType` containing only other `tff.TensorType`s and `tff.StructType`s.

Returns
A structure with the same shape and Python containers as `type_spec` but with the `tff.TensorType` elements replaced with the results of `fn`.

Raises
`ValueError`	if the provided `type_spec` is not a structural or tensor type.

Args