code: def test_init_overlap_params(self, sampler):
      sampler._init_overlap_params()
      assert sampler.per_silence_min_len is not None
      assert sampler.per_silence_max_len is not None
      assert type(sampler.per_silence_min_len) == int
      assert type(sampler.per_silence_max_len) == int
  
imports: import os
  import numpy
  import pytest
  import torch
  from omegaconf import DictConfig
  from nemo.collections.asr.parts.utils.data_simulation_utils import DataAnnotator, SpeechSampler, add_silence_to_alignments, binary_search_alignments, get_cleaned_base_path, get_split_points_in_alignments, normalize_audio, read_noise_manifest
  from nemo.collections.asr.parts.utils.manifest_utils import get_ctm_line
label_desc: Use image node_id 2 for calling the TestSpeechSampler obj's underlying member method code with example usage: obj.test_init_overlap_params(sampler) without return types