code: def _nb_function_args(fn):
      return len(signature(fn).parameters)
  
file_path: pywick/pywick/modules/_utils.py
imports: import datetime
  import warnings
  import torch.nn.functional
  import torch.optim
  from ..metrics import Metric, CategoricalAccuracy, BinaryAccuracy
  from ..initializers import GeneralInitializer
label_desc: Use image node_id 10 for calling a global function with example usage: _nb_function_args(fn) and returns: len