def register(function=None, *, singleton=False, threadlocal=False, name=None):
    """
    :deprecated: 1.0.0
    Use :class:`giveme.injector.Injector` instead.

    Register a dependency factory in the dependency manager. The function name is the
    name of the dependency.
    This can be used as a decorator.

    Args:
        function (callable): The dependency factory function
            Not needed when used as decorator.
        singleton (``bool``, optional): If ``True`` the given function is only called once
            during the application lifetime. Injectees will receive the already created
            instance when available. Defaults to ``False``
        threadlocal (``bool``, optional): Same as singleton except the returned instance
            is available only to the thread that created it. Defaults to ``False``
        name (``str``, optional): Overridden name for the dependency.
            Defaults to the name of the registered function.
    """
    warnings.warn(
        (
            'Module level `register` decorator has been deprecated and will '
            'be removed in a future release. '
            'Use the Injector class instead'
        ),
        DeprecationWarning
    )

    def decorator(function):

        return manager.register(function, singleton=singleton, threadlocal=threadlocal, name=name)
    if function:
        return decorator(function)
    else:
        return decorator