code: def get_simple_rttm_with_silence(rttm_file="test3.rttm"):
      line = "SPEAKER <NA> 1 1 2 <NA> <NA> speech <NA> <NA>\n"
      speech_segments = [[1.0, 2.0]]
      silence_segments = [[0.0, 1.0]]
      with open(rttm_file, "w") as f:
          f.write(line)
      return rttm_file, speech_segments, silence_segments
  
file_path: NeMo/tests/collections/asr/utils/test_vad_utils.py
imports: import numpy
  import pytest
  from pyannote.core import Annotation, Segment
  from nemo.collections.asr.parts.utils.vad_utils import align_labels_to_frames, convert_labels_to_speech_segments, frame_vad_construct_pyannote_object_per_file, get_frame_labels, get_nonspeech_segments, load_speech_overlap_segments_from_rttm, load_speech_segments_from_rttm, read_rttm_as_pyannote_object
label_desc: Use image node_id 3 for calling a global function with example usage: get_simple_rttm_with_silence(rttm_file) and returns: rttm_file,  speech_segments,  silence_segments