def get_match_list(summoner, num_matches=0, begin_index=0, begin_time=0, end_time=0, champions=None, ranked_queues=None, seasons=None):
    """
    Gets a summoner's match history

    Args:
        summoner (Summoner): the summoner to get match history for
        num_matches (int): the maximum number of matches to retrieve. 0 will get as many as possible. (default 0)
        begin_index (int): the game index to start from (default 0)
        begin_time (int | datetime): the begin time to use for fetching games (default 0)
        end_time (int | datetime): the end time to use for fetching games (default 0)
        champions (Champion | list<Champion>): the champion(s) to limit the results to (default None)
        ranked_queues Queue | list<Queue>: the ranked queue(s) to limit the results to (default None)
        seasons (Season | list<Season>): the season(s) to limit the results to (default None)

    Returns:
        list<MatchReference>: the summoner's match history
    """
    # Convert strings that should be enums into enums
    if isinstance(seasons, str):
        seasons = cassiopeia.type.core.common.Season(seasons.upper())
    elif isinstance(seasons, list) and all(isinstance(s, str) for s in seasons):
        seasons = [cassiopeia.type.core.common.Season(s.upper()) for s in seasons]

    if isinstance(ranked_queues, str):
        ranked_queues = cassiopeia.type.core.common.Queue(ranked_queues.upper().replace("5X5", "5x5").replace("3X3", "3x3"))
    elif isinstance(ranked_queues, list) and all(isinstance(q, str) for q in ranked_queues):
        ranked_queues = [cassiopeia.type.core.common.Queue(q.upper().replace("5X5", "5x5").replace("3X3", "3x3")) for q in ranked_queues]

    # Convert core types to API-ready types
    if isinstance(begin_time, datetime.datetime):
        epoch = datetime.datetime.utcfromtimestamp(0)
        delta = begin_time - epoch
        begin_time = int(delta.total_seconds() * 1000)
    if isinstance(end_time, datetime.datetime):
        epoch = datetime.datetime.utcfromtimestamp(0)
        delta = epoch - end_time
        end_time = int(delta.total_seconds() * 1000)

    champion_ids = [champion.id for champion in champions] if isinstance(champions, list) else champions.id if champions else None
    ranked_queues = [queue.value for queue in ranked_queues] if isinstance(ranked_queues, list) else ranked_queues.value if ranked_queues else None
    seasons = [season.value for season in seasons] if isinstance(seasons, list) else seasons.value if seasons else None

    history = cassiopeia.dto.matchlistapi.get_match_list(summoner.id, num_matches, begin_index, begin_time, end_time, champion_ids, ranked_queues, seasons)

    # Load required data if loading policy is eager
    if cassiopeia.core.requests.load_policy is cassiopeia.type.core.common.LoadPolicy.eager:
        cassiopeia.riotapi.get_champions() if history.champion_ids else None

    return [cassiopeia.type.core.matchlist.MatchReference(ref) for ref in history.matches]
dataset/ETHPy150Open meraki-analytics/cassiopeia/cassiopeia/core/matchlistapi.py/get_match_list/swapped operands of `-`