def load_rabit_checkpoint(self):
        """Initialize the model by load from rabit checkpoint.

        Returns
        -------
        version: integer
            The version number of the model.
        """
        version = ctypes.c_int()
        _check_call(_LIB.XGBoosterLoadRabitCheckpoint(
            self.handle, ctypes.byref(version)))
        return version.value
Initialize the model by load from rabit checkpoint.

        Returns
        -------
        version: integer
            The version number of the model.