def METHOD_NAME():
    @dataclass
    class Parent:
        a: int
        @field_validator('a')
        @classmethod
        def add_to_a(cls, v):
            return v + 1
    @dataclass
    class Child(Parent):
        @field_validator('a')
        @classmethod
        def add_to_a(cls, v):
            return v + 5
    assert Child(a=0).a == 5