code: def _dB2Linear(x: float) -> float:
      return math.exp(x * math.log(10) / 20.0)
  
imports: import math
  import warnings
  from typing import Optional
  import torch
  from torch import Tensor
  from torchaudio._extension import _IS_TORCHAUDIO_EXT_AVAILABLE
label_desc: Use image node_id 1 for calling a global function with example usage: _dB2Linear(x) and returns: math