python 3枚举列表值不支持成员资格测试

from enum import IntEnum
from typing import List
class EnumClass(IntEnum):
   A = 1
   B = 2

   @staticmethod
   def listofconditions() -> 'List[EnumClass]':
      return [EnumClass.A.numerator, \
              EnumClass.B.numerator]


if 1 in EnumClass.listofconditions:
    pass

产量:

[pylint]:E1135 Value 'EnumClass.listofconditions' doesn't support membership test

(我把这个贴在其他人的google上,搜索这个神秘信息的解决方案,以便理解它。后续解决方案)