tff.types.FederatedType

An implementation of tff.Type representing federated types in TFF.

Inherits From: Type

tff.types.FederatedType(
    member: object,
    placement: tff.framework.PlacementLiteral,
    all_equal: Optional[bool] = None
)

Used in the notebooks

Used in the tutorials

member An instance of tff.Type or something convertible to it, that represents the type of the member components of each value of this federated type.
placement The specification of placement that the member components of this federated type are hosted on. Must be either a placement literal such as tff.SERVER or tff.CLIENTS to refer to a globally defined placement, or a placement label to refer to a placement defined in other parts of a type signature. Specifying placement labels is not implemented yet.
all_equal A bool value that indicates whether all members of the federated type are equal (True), or are allowed to differ (False). If all_equal is None, the value is selected as the default for the placement, e.g., True for tff.SERVER and False for tff.CLIENTS.

all_equal

member

placement

Methods

check_assignable_from

View source

check_assignable_from(
    source_type: 'Type'
) -> None

Raises if values of source_type cannot be cast to this type.

check_equivalent_to

View source

check_equivalent_to(
    other: 'Type'
) -> None

Raises if values of 'other' cannot be cast to and from this type.

check_identical_to

View source

check_identical_to(
    other: 'Type'
) -> None

Raises if other and Type are not exactly identical.

children

View source

children() -> Iterator[Type]

Returns a generator yielding immediate child types.

compact_representation

View source

compact_representation() -> str

Returns the compact string representation of this type.

formatted_representation

View source

formatted_representation() -> str

Returns the formatted string representation of this type.

is_assignable_from

View source

is_assignable_from(
    source_type: tff.types.Type
) -> bool

Returns whether values of source_type can be cast to this type.

is_equivalent_to

View source

is_equivalent_to(
    other: 'Type'
) -> bool

Returns whether values of other can be cast to and from this type.

is_identical_to

View source

is_identical_to(
    other: 'Type'
) -> bool

Returns whether or not self and other are exactly identical.

__eq__

View source

__eq__(
    other
)

Determines whether two type definitions are identical.

Note that this notion of equality is stronger than equivalence. Two types with equivalent definitions may not be identical, e.g., if they represent templates with differently named type variables in their definitions.

Args
other The other type to compare against.

Returns
True if type definitions are syntactically identical (as defined above), otherwise False.

Raises
NotImplementedError If not implemented in the derived class.

__ne__

View source

__ne__(
    other
)

Return self!=value.