code: def test_pad_sample_indices(self):
      start_sample, end_sample = pad_sample_indices(
          start_sample=1000,
          end_sample=2000,
          max_sample=5000,
          sample_rate=100,
          pad_seconds=3,
      )
      assert start_sample == 700
      assert end_sample == 2300
  
imports: import numpy
  import pytest
  from nemo.collections.tts.parts.preprocessing.audio_trimming import get_start_and_end_of_speech_frames, pad_sample_indices
label_desc: Use image node_id 3 for calling the TestAudioTrimming obj's underlying member method code with example usage: obj.test_pad_sample_indices() without return types