code: def _apply_generate_function_by_name(self, f):
      if f.name not in self._function_callbacks_by_name:
          return f
      return self._function_callbacks_by_name[f.name](f)
  
imports: from __future__ import print_function
  import itertools
  from collections import OrderedDict
  import nnabla
  import numpy
label_desc: Use image node_id 20 for calling the NnpNetworkPass obj's underlying member method code with example usage: obj._apply_generate_function_by_name(f) and returns: self, f