'If the type of the value of a ``PMap`` changes the output changes.'

def test_pmap_value_new_type(self):

    class Different(CheckedPMap, ):
        __key_type__ = int
        __value_type__ = int
    Original = Different
    class Different(CheckedPMap, ):
        __key_type__ = int
        __value_type__ = str
    self.assert_catches_changes(Original, Different)
