code: def downgrade():
      with op.batch_alter_table("table_columns") as batch_op:
          batch_op.drop_column("advanced_data_type")
      with op.batch_alter_table("columns") as batch_op:
          batch_op.drop_column("advanced_data_type")
      with op.batch_alter_table("sl_columns") as batch_op:
          batch_op.drop_column("advanced_data_type")
  
imports: import sqlalchemy
  from alembic import op
label_desc: Use image node_id 2 for calling a global function with example usage: downgrade() without return types