code: def show_val(self):
      return self._show_val
  
file_path: evadb/evadb/plan_nodes/show_info_plan.py
imports: from typing import Optional
  from evadb.parser.types import ShowType
  from evadb.plan_nodes.abstract_plan import AbstractPlan
  from evadb.plan_nodes.types import PlanOprType
label_desc: Use image node_id 3 for calling the ShowInfoPlan obj's underlying member method code with example usage: obj.show_val() and returns: self