def _hash_example(states: List[State], action: Text,
tracker: DialogueStateTracker) -> int:
"""Hash states for efficient deduplication."""
frozen_states = tuple(
s if s is None else tracker.freeze_current_state(s)
for s in states)
frozen_actions = (action, )
return hash((frozen_states, frozen_actions))
def _hash_example(states: List[State],
labels: Optional[List[Text]] = None) -> int:
"""Hashes states (and optionally label).
Produces a hash of the tracker state sequence (and optionally the labels).
If `labels` is `None`, labels don't get hashed.
Args:
states: The tracker state sequence to hash.
labels: Label strings associated with this state sequence.
Returns:
The hash of the states and (optionally) the label.
"""
frozen_states = tuple(
s if s is None else DialogueStateTracker.freeze_current_state(s)
for s in states)
if labels is not None:
frozen_labels = tuple(labels)
return hash((frozen_states, frozen_labels))
else:
return hash(frozen_states)
