code: def gen_method_keys(self, *args, **kwargs):
          '''Given a node, return the string to use in computing the
          matching visitor methodname. Can also be a generator of strings.
          '''
          token = args[0]
          for mro_type in type(token).__mro__[:-1]:
              name = mro_type.__name__
              yield namf gen_method_keys(self, *args, **kwargs):
          '''Given a node, return the string to use in computing the
          matching visitor methodname. Can also be a generator of strings.
          '''
          token = args[0]
          for mro_type in type(token).__mro__[:-1]:
              name = mro_type.__name__
              yield name
docs: Given a node, return the string to use in computing the
          matching visitor methodname. Can also be a generator of strings.