code: def get_val_examples(self):
      return self.read_examples(path=self.val_path, set_type=PHASE.VAL)
  
file_path: jiant/jiant/tasks/lib/mrqa_natural_questions.py
imports: import gzip
  import json
  from dataclasses import dataclass
  from jiant.shared.constants import PHASE
  from jiant.tasks.lib.templates.squad_style import core
  from jiant.utils.python.io import read_jsonl
label_desc: Use image node_id 2 for calling the MrqaNaturalQuestionsTask obj's underlying member method code with example usage: obj.get_val_examples() and returns: self