def METHOD_NAME(self, stage: MLPlanStages, is_probabilities: bool) -> bool:
    """
    Check whether or not the plan is fit for production by the given stage and prediction probabilities.
    :param stage:            The stage to check if the plan is ready.
    :param is_probabilities: True if the 'y_pred' that will be sent to 'produce' is a prediction of probabilities
                             (from 'predict_proba') and False if not.
    :return: True if the plan is producible and False otherwise.
    """
    pass