code: def example_forward_input(self):
      return {
          "input_ids": torch.randint(1000, size=(1, 32)),
          "attention_mask": torch.randint(1, size=(1, 32)),
          "start_positions": torch.randint(1000, size=(1, 1)),
          "end_positions": torch.randint(1000, size=(1, 1)),
      }
  
file_path: lightning-flash/tests/text/question_answering/test_model.py
imports: import collections
  from typing import Any
  import pytest
  import torch
  from flash.core.utilities.imports import _TOPIC_TEXT_AVAILABLE
  from flash.text import QuestionAnsweringTask
  from torch import Tensor
  from tests.helpers.task_tester import TaskTester
label_desc: Use image node_id 1 for calling the TestQuestionAnsweringTask obj's underlying member method code with example usage: obj.example_forward_input() and returns: dict