def downgrade():
### commands auto generated by Alembic - please adjust! ###
op.add_column('goods', sa.Column('contact', mysql.INTEGER(display_width=11), autoincrement=False, nullable=False))
op.drop_column('goods', 'contact_wechat')
op.drop_column('goods', 'contact_tel')
op.drop_column('goods', 'contact_qq')
### end Alembic commands ###
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