def METHOD_NAME(
    study: MultiObjectiveStudy,
    pareto_trials: List["multi_objective.trial.FrozenMultiObjectiveTrial"],
) -> List["multi_objective.trial.FrozenMultiObjectiveTrial"]:
    non_pareto_trials = []
    for trial in study.get_trials():
        if trial.state == TrialState.COMPLETE and trial not in pareto_trials:
            non_pareto_trials.append(trial)
    return non_pareto_trials