code: def json2annotation(chimelike_jsonf, uri=None, spk_prefix=None):
      with open(chimelike_jsonf, "r") as f:
          json_ann = json.load(f)
  
      def to_annotation(segs, uri=None, spk_prefix=None):
          out = Annotation(uri=uri)
          for s in segs:
              speaker = s["speaker"]
              if spk_prefix is not None:
                  speaker = spk_prefix + "_" + speaker
              start = float(s["start_time"])
              end = float(s["end_time"])
              out[Segment(start, end)] = speaker
          return out
  
      return to_annotation(json_ann, uri, spk_prefix)
  
file_path: espnet/egs2/chime7_task1/diar_asr1/local/pyannote_dprep.py
imports: import argparse
  import glob
  import json
  import math
  import os.path
  import re
  from pathlib import Path
  import soundfile
  import tqdm
  from pyannote.metrics.segmentation import Annotation, Segment
label_desc: Use image node_id 2 for calling a global function with example usage: json2annotation(chimelike_jsonf, uri, spk_prefix) and returns: to_annotation, out