def _get_default(cls) -> "Argilla":
        """Get the default instance of Argilla. If it doesn't exist, create a new one."""
        if cls._default_client is None:
            cls._default_client = Argilla()
        return cls._default_client
Get the default instance of Argilla. If it doesn't exist, create a new one.
argilla/src/argilla/client.py