Enum downgrade for the enum article

downgrade.py

def downgrade():
    op.execute("ALTER TYPE status RENAME TO status_old")
    op.execute("CREATE TYPE status AS ENUM('STARTED', 'ACCEPTED')")
    op.execute((
        "ALTER TABLE transactions ALTER COLUMN status TYPE status USING "
        "status::text::status"
    ))
    op.execute("DROP TYPE status_old")