class Frame:
    def __init__(self, id, frame_nr, garment):
        self.id = id
        self.frame_nr = frame_nr
        self.garment = garment

    def __hash__(self):
        return hash((self.id, self.frame_nr))

    def __eq__(self, other):
        return (self.id, self.frame_nr) == (other.id, other.frame_nr)