code: def db2mag(db: float) -> float:
      """Convert value in dB to linear magnitude ratio.
  
      Args:
          db: magnitude ratio in dB
  
      Returns:
          Magnitude ratio in linear scale.
      """
      return 10 ** (db / 20)
  
imports: import math
  from typing import Iterable, Optional, Union
  import librosa
  import numpy
  import numpy.typing
  import scipy
  import soundfile
  import torch
  from scipy.spatial.distance import pdist, squareform
  from nemo.utils import logging
label_desc: Use image node_id 10 for calling a global function with example usage: db2mag(db) and returns: unknown