code: def clear_grp_exprs(self):
      self._logical_exprs.clear()
      self._physical_exprs.clear()
  
imports: from __future__ import annotations
  from typing import Dict, List
  from evadb.constants import UNDEFINED_GROUP_ID
  from evadb.optimizer.group_expression import GroupExpression
  from evadb.optimizer.property import Property
  from evadb.utils.logging_manager import logger
label_desc: Use image node_id 13 for calling the Group obj's underlying member method code with example usage: obj.clear_grp_exprs() without return types