def _get_slots_sub_state(
tracker: "DialogueStateTracker",
) -> Dict[Text, Union[Text, Tuple[float]]]:
"""Set all set slots with the featurization of the stored value
Args:
tracker: dialog state tracker containing the dialog so far
Returns:
a dictionary mapping slot names to their featurization
"""
# proceed with values only if the user of a bot have done something
# at the previous step i.e., when the state is not empty.
if tracker.latest_message == UserUttered.empty(
) or not tracker.latest_action:
return {}
slots = {}
for slot_name, slot in tracker.slots.items():
if slot is not None and slot.as_feature():
if slot.value == rasa.shared.core.constants.SHOULD_NOT_BE_SET:
slots[
slot_name] = rasa.shared.core.constants.SHOULD_NOT_BE_SET
elif any(slot.as_feature()):
# only add slot if some of the features are not zero
slots[slot_name] = tuple(slot.as_feature())
return slots
def _reset(self) -> None:
"""Reset tracker to initial state - doesn't delete events though!."""
self._reset_slots()
self._paused = False
self.latest_action = {}
self.latest_message = UserUttered.empty()
self.latest_bot_utterance = BotUttered.empty()
self.followup_action = ACTION_LISTEN_NAME
self.active_loop = None
