docs: def p_lconst_case_list(self, p):
          '''lconst_case_list : lconst COLON expr
                              | lconst COLON OTHERWISE
                              | lconst_case_list COMMA lconst COLON expr'''
          if len(p) == 4:
              p[0] = [('lconst', (p[1], p[3]))]
          elif len(p) == 6:
              p[1].append(('lconst', (p[3], p[5])))
              p[0] = p[1]