docs: def p_lconst_list(self, p):
          '''lconst_list : lconst_list COMMA lconst
                         | lconst'''
          if len(p) == 4:
              p[1].append(p[3])
              p[0] = p[1]
          elif len(p) == 2:
              p[0] = [p[1]]