def values_match(self, value1, value2): # pragma: nocover
raise ConversationNotSupported(
C.make_error('TYPE_NO_MATCH', type=self.__alias__.lower()))
def _convert_from_boolean(self, value): # pragma: nocover
raise ConversationNotSupported(
C.make_error('TYPE_NO_CONVERT',
target=self.__alias__.lower(),
source=self._cnv_topic()[1]))
def is_valid_value(self, value): # pragma: nocover
raise ConversationNotSupported(
C.make_error('TYPE_NO_CHECK', type=self.__alias__.lower()))
