code: def main():
      args = get_args()
  
      # File containing speaker labels per segment
      seg2label = {}
      with codecs.open(args.labels, "r", "utf-8") as labels_file:
          for line in labels_file:
              seg, label = line.strip().split()
              seg2label[seg] = label
  
      # Segments file
      reco2segs = {}
      with codecs.open(args.segments, "r", "utf-8") as segments_file:
          for line in segments_file:
              seg, reco, start, end = line.strip().split()
              try:
                  if reco in reco2segs:
                      reco2segs[reco] = (
                          reco2segs[reco]
                          + " "
                          + start
                          + ","
                          + end
                          + ","
                          + seg2label[seg]
                      )
                  else:
                      reco2segs[reco] = (
                          reco
                          + " "
                          + start
                          + ","
                          + end
                          + ","
                          + seg2label[seg]
                      )
              except KeyError:
                  raise RuntimeError(
                      "Missing label for segment {0}".format(seg)
                  )
  
      # Cut up overlapping segments so they are contiguous
      contiguous_segs = []
      for reco in sorted(reco2segs):
          segs = reco2segs[reco].strip().split()
          new_segs = ""
          for i in range(1, len(segs) - 1):
              start, end, label = segs[i].split(",")
              next_start, next_end, next_label = segs[i + 1].split(",")
              if float(end) > float(next_start):
                  done = False
                  avg = str((float(next_start) + float(end)) / 2.0)
                  segs[i + 1] = ",".join([avg, next_end, next_label])
                  new_segs += " " + start + "," + avg + "," + label
              else:
                  new_segs += " " + start + "," + end + "," + label
          start, end, label = segs[-1].split(",")
          new_segs += " " + start + "," + end + "," + label
          contiguous_segs.append(reco + new_segs)
  
      # Merge contiguous segments of the same label
      merged_segs = []
      for reco_line in contiguous_segs:
          segs = reco_line.strip().split()
          reco = segs[0]
          new_segs = ""
          for i in range(1, len(segs) - 1):
              start, end, label = segs[i].split(",")
              next_start, next_end, next_label = segs[i + 1].split(",")
              if (
                  float(end) == float(next_start)
                  and label == next_label
              ):
                  segs[i + 1] = ",".join([start, next_end, next_label])
              else:
                  new_segs += " " + start + "," + end + "," + label
          start, end, label = segs[-1].split(",")
          new_segs += " " + start + "," + end + "," + label
          merged_segs.append(reco + new_segs)
  
      with codecs.open(args.rttm_file, "w", "utf-8") as rttm_writer:
          for reco_line in merged_segs:
              segs = reco_line.strip().split()
              reco = segs[0]
              for i in range(1, len(segs)):
                  start, end, label = segs[i].strip().split(",")
                  print(
                      "SPEAKER {0} {1} {2:7.3f} {3:7.3f} <NA> <NA> {4} <NA> <NA>".format(
                          reco,
                          args.rttm_channel,
                          float(start),
                          float(end) - float(start),
                          label,
                      ),
                      file=rttm_writer,
                  )
  
imports: import argparse
  import codecs
  import sys
label_desc: Use image node_id 2 for calling a global function with example usage: main() without return types