code: def signature(self):
          ''' Return the function signature
          Returns:
              (str, list(str)): name, list parameters type
          '''
          return self.name, [str(x.type) for x in self.elemsf signature(self):
          ''' Return the function signature
          Returns:
              (str, list(str)): name, list parameters type
          '''
          return self.name, [str(x.type) for x in self.elems]
docs: Return the function signature
          Returns:
              (str, list(str)): name, list parameters type