code: def test_manually_set_iou_thrs(self):
      # create dummy data
      fake_json_file = osp.join(self.tmp_dir.name, "fake_data.json")
      self._create_dummy_lvis_json(fake_json_file)
  
      # test single lvis dataset evaluation
      lvis_metric = LVISMetric(
          ann_file=fake_json_file, metric="bbox", iou_thrs=[0.3, 0.6]
      )
      lvis_metric.dataset_meta = dict(
          classes=["aerosol_can", "air_conditioner"]
      )
      self.assertEqual(lvis_metric.iou_thrs, [0.3, 0.6])
  
imports: import os.path
  import tempfile
  import unittest
  import numpy
  import pycocotools.mask
  import torch
  from mmdet.evaluation.metrics import LVISMetric
  from mmengine.fileio import dump
label_desc: Use image node_id 8 for calling the TestLVISMetric obj's underlying member method code with example usage: obj.test_manually_set_iou_thrs() without return types