"""print customer Revision ID: e5e8acfc6495 Revises: 48bc1c7c07ce Create Date: 2021-06-27 09:57:43.034956 """ import sqlalchemy as sa from alembic import op # revision identifiers, used by Alembic. from sqlalchemy.sql import expression revision = "e5e8acfc6495" down_revision = "48bc1c7c07ce" branch_labels = None depends_on = None def upgrade(): op.add_column( "customers", sa.Column("print_in_bill", sa.Boolean(), nullable=False, server_default=expression.false()) ) def downgrade(): op.drop_column("customers", "print_in_bill")