code: def add_token_object(self, token):
          ''' Add a token object into this sentence '''
          token.sent = self  # take ownership of given token
          self.__tokens.append(token)
          return tokef add_token_object(self, token):
          ''' Add a token object into this sentence '''
          token.sent = self  # take ownership of given token
          self.__tokens.append(token)
          return token
docs: Add a token object into this sentence