tensorflow_federated/python/core/impl/executors/executor_serialization.py [573:602]:
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  else:
    raise ValueError(
        'Unable to deserialize a value of type {}.'.format(which_value))


CardinalitiesType = Mapping[placements.PlacementLiteral, int]


def serialize_cardinalities(
    cardinalities: CardinalitiesType
) -> List[executor_pb2.SetCardinalitiesRequest.Cardinality]:
  serialized_cardinalities = []
  for placement, cardinality in cardinalities.items():
    cardinality_message = executor_pb2.SetCardinalitiesRequest.Cardinality(
        placement=computation_pb2.Placement(uri=placement.uri),
        cardinality=cardinality)
    serialized_cardinalities.append(cardinality_message)
  return serialized_cardinalities


def deserialize_cardinalities(
    serialized_cardinalities: Collection[
        executor_pb2.SetCardinalitiesRequest.Cardinality]
) -> CardinalitiesType:
  cardinalities_dict = {}
  for cardinality_spec in serialized_cardinalities:
    literal = placements.uri_to_placement_literal(
        cardinality_spec.placement.uri)
    cardinalities_dict[literal] = cardinality_spec.cardinality
  return cardinalities_dict
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tensorflow_federated/python/core/impl/executors/value_serialization.py [620:649]:
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  else:
    raise ValueError(
        'Unable to deserialize a value of type {}.'.format(which_value))


CardinalitiesType = Mapping[placements.PlacementLiteral, int]


def serialize_cardinalities(
    cardinalities: CardinalitiesType
) -> List[executor_pb2.SetCardinalitiesRequest.Cardinality]:
  serialized_cardinalities = []
  for placement, cardinality in cardinalities.items():
    cardinality_message = executor_pb2.SetCardinalitiesRequest.Cardinality(
        placement=computation_pb2.Placement(uri=placement.uri),
        cardinality=cardinality)
    serialized_cardinalities.append(cardinality_message)
  return serialized_cardinalities


def deserialize_cardinalities(
    serialized_cardinalities: Collection[
        executor_pb2.SetCardinalitiesRequest.Cardinality]
) -> CardinalitiesType:
  cardinalities_dict = {}
  for cardinality_spec in serialized_cardinalities:
    literal = placements.uri_to_placement_literal(
        cardinality_spec.placement.uri)
    cardinalities_dict[literal] = cardinality_spec.cardinality
  return cardinalities_dict
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