code: def upgrade():
      with op.batch_alter_table("query") as batch_op:
          batch_op.add_column(
              sa.Column(
                  "limiting_factor",
                  sa.VARCHAR(255),
                  server_default="UNKNOWN",
              )
          )
  
imports: import sqlalchemy
  from alembic import op
label_desc: Use image node_id 1 for calling a global function with example usage: upgrade() without return types