code: def get_bit_depth(dtype):
      bit_depths = {
          "float32": 32,
          "int32": 32,
          "int16": 16,
          "uint8": 8,
      }
      return bit_depths[dtype]
  
file_path: audio/test/torchaudio_unittest/common_utils/sox_utils.py
imports: import subprocess
  import sys
  import warnings
label_desc: Use image node_id 2 for calling a global function with example usage: get_bit_depth(dtype) and returns: bit_depths