code: def _is_reduction(fn):
      return (
          fn in NATIVE_REDUCE_MAP
          or fn in TORCH_REDUCE_MAP
          or fn in TENSOR_REDUCE_MAP
      )
  
file_path: pytorch/torch/masked/maskedtensor/reductions.py
imports: import warnings
  import torch
  from .core import is_masked_tensor
  from .creation import as_masked_tensor, masked_tensor
label_desc: Use image node_id 11 for calling a global function with example usage: _is_reduction(fn) and returns: unknown