code: def hdemucs_low(sources: List[str]) -> HDemucs:
      """Builds low nfft (1024) version of :class:`HDemucs`, suitable for sample rates around 8 kHz.
  
      Args:
          sources (List[str]): See :py:func:`HDemucs`.
  
      Returns:
          HDemucs:
              HDemucs model.
      """
  
      return HDemucs(sources=sources, nfft=1024, depth=5)
  
imports: import math
  import typing
  from typing import Any, Dict, List, Optional
  import torch
  from torch import nn
  from torch.nn import functional
label_desc: Use image node_id 5 for calling a global function with example usage: hdemucs_low(sources) and returns: HDemucs