code: def downgrade():
      """Unapply add-k8s-yaml-to-rendered-templates"""
      with op.batch_alter_table(__tablename__, schema=None) as batch_op:
          batch_op.drop_column("k8s_pod_yaml")
  
imports: from __future__ import annotations
  import sqlalchemy_jsonfield
  from alembic import op
  from sqlalchemy import Column
  from airflow.settings import json
label_desc: Use image node_id 2 for calling a global function with example usage: downgrade() without return types