def __init__(self, migrations, filename):
        self.migrations = migrations
        self.filename = filename
        self.dependencies = set()
        self.dependents = set()
Returns:
dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/South-1.0.2/south/migration/base.py/Migration.__init__--crossover with--dataset/ETHPy150Open meraki-analytics/cassiopeia/cassiopeia/type/core/match.py/ParticipantStats.deaths