file_path: detectron2/tests/data/test_coco_evaluation.py
imports: import contextlib
  import copy
  import io
  import json
  import numpy
  import os
  import tempfile
  import unittest
  import torch
  from pycocotools.coco import COCO
  from pycocotools.cocoeval import COCOeval
  from detectron2.data import DatasetCatalog
  from detectron2.evaluation import COCOEvaluator
  from detectron2.evaluation.fast_eval_api import COCOeval_opt
  from detectron2.structures import Boxes, Instances
label_desc: Use image node_id 1 for calling the TestCOCOeval obj's underlying member method code with example usage: obj.test_fast_eval() without return types