DI-engine/ding/league/__init__.py

from .base_league import BaseLeague, create_league
from .one_vs_one_league import OneVsOneLeague
from .player import Player, ActivePlayer, HistoricalPlayer, create_player
from .starcraft_player import MainPlayer, MainExploiter, LeagueExploiter
from .shared_payoff import create_payoff
from .metric import get_elo, get_elo_array, LeagueMetricEnv