code: def __call__(self, *args, **kwargs):
      func, s = self.resolve(args)
      return func(*args, **kwargs)
  
file_path: pytorch/torch/fx/experimental/unification/match.py
imports: from .core import unify, reify
  from .variable import isvar
  from .utils import _toposort, freeze
  from .unification_tools import groupby, first
label_desc: Use image node_id 3 for calling the Dispatcher obj's underlying member method code with example usage: obj.__call__() and returns: func