code: def get_train_examples(self):
      raise NotImplementedError("XQuAD does not have training examples")
  
file_path: jiant/jiant/tasks/lib/xquad.py
imports: from dataclasses import dataclass
  from jiant.tasks.lib.templates.squad_style import core
label_desc: Use image node_id 2 for calling the XquadTask obj's underlying member method code with example usage: obj.get_train_examples() without return types