+class Nature(TableBase):
+ __tablename__ = 'natures'
+ id = Column(Integer, primary_key=True, nullable=False)
+ name = Column(Unicode(8), nullable=False)
+ decreased_stat_id = Column(Integer, ForeignKey('stats.id'), nullable=False)
+ increased_stat_id = Column(Integer, ForeignKey('stats.id'), nullable=False)
+