    def __call__(self, tensor: torch.Tensor, **kwargs) -> None:
        """
        This function is here just to make mypy happy.  We expect initialization functions to
        follow this API; the builtin pytorch initialization functions follow this just fine, even
        though they don't subclass `Initialization`.  We're just making it explicit here, so mypy
        knows that initializers are callable like this.
        """
        raise NotImplementedError
This function is here just to make mypy happy.  We expect initialization functions to
follow this API; the builtin pytorch initialization functions follow this just fine, even
though they don't subclass `Initialization`.  We're just making it explicit here, so mypy
knows that initializers are callable like this.
allennlp/nn/initializers.py