def __init__(self, to, related_name=None, limit_choices_to=None,
            symmetrical=True, through=None):
        self.to = to
        self.related_name = related_name
        if limit_choices_to is None:
            limit_choices_to = {}
        self.limit_choices_to = limit_choices_to
        self.symmetrical = symmetrical
        self.multiple = True
        self.through = through
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/django/db/models/fields/related.py/ManyToManyRel.__init__/original