Use providers for keys of providers.Dict

[swbliss]

I want to use the object given by another provider for the key of Dict provider.
However, as I have found, the value of Dict provider only can be another provider value, not key.

For example, I want to do like dict_provider of WorkersContainer. When I call summary method for dict_provider, it gives <dependency_injector.providers.Dependency> class for the key and 3 for the value.

from dependency_injector import containers, providers


class ListWorkers:
    def __init__(self, machines: list[tuple[str, int]]):
        self._machines = machines

    def summary(self):
        for m in self._machines:
            print(f"[ListWorkers] {m[0]}: {m[1]}")


class DictWorkers:
    def __init__(self, machines: dict[str, int]):
        self._machines = machines

    def summary(self):
        for machine, count in self._machines.items():
            print(f"[DictWorkers] {machine}: {count}")


class BaseContainer(containers.DeclarativeContainer):
    machine = providers.Object("MAC")
    count = providers.Object(3)


class WorkersContainer(containers.DeclarativeContainer):
    base_container = providers.DependenciesContainer()
    list_provider = providers.Singleton(
        ListWorkers,
        providers.List(providers.List(base_container.machine, base_container.count)),
    )
    dict_provider = providers.Singleton(
        DictWorkers, providers.Dict({base_container.machine: base_container.count})
   )


if __name__ == "__main__":
    base_container = BaseContainer()
    workers_container = WorkersContainer(base_container=base_container)

    workers_container.list_provider().summary()
    workers_container.dict_provider().summary()

How can I inject object to Dict providers's key?