def METHOD_NAME() -> None:
    class AnFloatConfig(Config):
        a_float: float = Field(multiple_of=0.5)
    AnFloatConfig(a_float=1)
    AnFloatConfig(a_float=0.5)
    AnFloatConfig(a_float=0)
    AnFloatConfig(a_float=-3)
    with pytest.raises(ValidationError, match="ensure this value is a multiple of 0.5"):
        AnFloatConfig(a_float=0.25)
    with pytest.raises(ValidationError, match="ensure this value is a multiple of 0.5"):
        AnFloatConfig(a_float=-0.3)