code: def main():
      parser = ArgumentParser(description="COCO Error Analysis Tool")
      parser.add_argument(
          "result", help="result file (json format) path"
      )
      parser.add_argument(
          "out_dir", help="dir to save analyze result images"
      )
      parser.add_argument(
          "--ann",
          default="data/coco/annotations/instances_val2017.json",
          help="annotation file path",
      )
      parser.add_argument(
          "--types",
          type=str,
          nargs="+",
          default=["bbox"],
          help="result types",
      )
      parser.add_argument(
          "--extraplots",
          action="store_true",
          help="export extra bar/stat plots",
      )
      parser.add_argument(
          "--score-thr",
          type=float,
          default=None,
          help="score threshold to filter detection bboxes, only applied"
          "when users want to change it.",
      )
      parser.add_argument(
          "--areas",
          type=int,
          nargs="+",
          default=[1024, 9216, 10000000000],
          help="area regions",
      )
      args = parser.parse_args()
      analyze_results(
          args.result,
          args.ann,
          args.types,
          out_dir=args.out_dir,
          extraplots=args.extraplots,
          areas=args.areas,
          score_thr=args.score_thr,
      )
  
file_path: mmdetection/tools/analysis_tools/coco_error_analysis.py
imports: import copy
  import os
  from argparse import ArgumentParser
  from multiprocessing import Pool
  import matplotlib.pyplot
  import numpy
  from pycocotools.coco import COCO
  from pycocotools.cocoeval import COCOeval
label_desc: Use image node_id 9 for calling a global function with example usage: main() without return types