code: def max_num_spk(self) -> int:
      return self._max_num_spk
  
file_path: espnet/espnet2/diar/layers/multi_mask.py
imports: from collections import OrderedDict
  from typing import List, Tuple, Union
  import torch
  import torch.nn
  import torch.nn.functional
  from torch_complex.tensor import ComplexTensor
  from espnet2.diar.layers.abs_mask import AbsMask
label_desc: Use image node_id 2 for calling the MultiMask obj's underlying member method code with example usage: obj.max_num_spk() and returns: self