docs: def p_arguments(self, p):
          """arguments : LPAREN RPAREN
                       | LPAREN argument_list RPAREN
          """
          if len(p) == 4:
              p[0] = self.asttypes.Arguments(p[2])
          else:
              p[0] = self.asttypes.Arguments([])
          p[0].setpos(p)