code: def _init_test_anchor_generator(self):
      anchor_sizes = ((10,),)
      aspect_ratios = ((1,),)
      anchor_generator = AnchorGenerator(anchor_sizes, aspect_ratios)
  
      return anchor_generator
  
file_path: vision/test/test_models_detection_anchor_utils.py
imports: import pytest
  import torch
  from common_utils import assert_equal
  from torchvision.models.detection.anchor_utils import AnchorGenerator, DefaultBoxGenerator
  from torchvision.models.detection.image_list import ImageList
label_desc: Use image node_id 2 for calling the Tester obj's underlying member method code with example usage: obj._init_test_anchor_generator() and returns: anchor_generator