def _score_core_nllikelihood(
        self, vals: np.ndarray, pred_vals: np.ndarray
    ) -> np.ndarray:
        """For each timestamp, the corresponding distribution is fitted on the probabilistic time-series
        input_2, and returns the negative log-likelihood of the deterministic time-series input_1
        given the distribution.
        """
        pass
For each timestamp, the corresponding distribution is fitted on the probabilistic time-series
        input_2, and returns the negative log-likelihood of the deterministic time-series input_1
        given the distribution.
        
darts/ad/scorers/scorers.py