src/transformers/integrations/integration_utils.py/NeptuneMissingConfiguration/__init__
class NeptuneMissingConfiguration:    def __init__(self):
        super().__init__(
            """
        ------ Unsupported ---- We were not able to create new runs. You provided a custom Neptune run to
        `NeptuneCallback` with the `run` argument. For the integration to work fully, provide your `api_token` and
        `project` by saving them as environment variables or passing them to the callback.
        """
        )