**** CubicPower OpenStack Study ****
def upgrade(migrate_engine):
meta = sql.MetaData()
meta.bind = migrate_engine
user_table = sql.Table('consumer', meta, autoload=True)
user_table.c.description.alter(nullable=True)
**** CubicPower OpenStack Study ****
def downgrade(migrate_engine):
meta = sql.MetaData()
meta.bind = migrate_engine
user_table = sql.Table('consumer', meta, autoload=True)
user_table.c.description.alter(nullable=False)