+class Machine(TableBase):
+ __tablename__ = 'machines'
+ machine_number = Column(Integer, primary_key=True, nullable=False, autoincrement=False)
+ generation_id = Column(Integer, ForeignKey('generations.id'), primary_key=True, nullable=False, autoincrement=False)
+ move_id = Column(Integer, ForeignKey('moves.id'), nullable=False)
+