Trackers maintain the state of a dialogue between the assistant and the user in the formof conversation sessions. To learn more about how to configure the session behavior,check out the docs on Session configuration.

class rasa.core.trackers.DialogueStateTracker(sender_id, slots, max_event_history=None, sender_source=None)¶

Maintains the state of a conversation.

The field max_event_history will only give you these last events,it can be set in the tracker_store

Problem with self.validateslots in def validate after updating rasa to version 1.7.0 #5227 Closed igormiranda001 opened this issue Feb 12, 2020 3 comments.

applied_events()¶

If they’re not, you should add all the slots that have been set by the form. The restaurantform in the story above is the name of our form action. Here is an example of what it looks like. You need to define three methods: name: the name of this action; requiredslots: a list of slots that need to be filled for the submit method to work.
How can I extract the value of a slot/entity during a conversation in FormAction.slotmappings? I have the value set in tracker.slots'templatename', but don't have access to that value from t.
You can find all the links here: Ngrok: Imports used: import email import smtplib, ssl from email import encoders from smtplib imp.
I have the value set in tracker.slots'templatename', but don't have access to that value from this function. I am able to access tracker in requiredslots but not slotmappings Rather than hard coding templatename = 'example' I'd like to use the slot value for templatename.

Returns all actions that should be applied - w/o reverted events.

Return type

Ruby slots casino sign up. List[Event]

as_dialogue()¶

Return a Dialogue object containing all of the turns.

This can be serialised and later used to recover the stateof this tracker exactly.

Return type

Dialogue

change_form_to(form_name)¶

Activate or deactivate a form

Return type

None

clear_followup_action()¶

Clears follow up action when it was executed.

Return type

None

copy()¶

Creates a duplicate of this tracker

Return type

current_slot_values()¶

Return the currently set values of the slots

Return type

Dict[str, Any]

current_state(event_verbosity=<EventVerbosity.NONE: 1>)¶

Return the current tracker state as an object.

Return type

Dict[str, Any]

events_after_latest_restart()¶

Return a list of events after the most recent restart.

Return type

List[Event]

export_stories(e2e=False, include_source=False)¶

Dump the tracker as a story in the Rasa Core story format.

Returns the dumped tracker as a string.

Return type

str

export_stories_to_file(export_path='debug.md')¶

Dump the tracker as a story to a file.

Return type

None

classmethod from_dict(sender_id, events_as_dict, slots=None, max_event_history=None)¶

Create a tracker from dump.

The dump should be an array of dumped events. When restoringthe tracker, these events will be replayed to recreate the state.

Return type

generate_all_prior_trackers()¶

Returns a generator of the previous trackers of this tracker.

The resulting array is representing the trackers before each action.

Return type

Generator[DialogueStateTracker, None, None]

get_last_event_for(event_type, action_names_to_exclude=None, skip=0)¶

Gets the last event of a given type which was actually applied.

Parameters

event_type – The type of event you want to find.
action_names_to_exclude – Events of type ActionExecuted whichshould be excluded from the results. Can be used to skipaction_listen events.
skip – Skips n possible results before return an event.

Returns

event which matched the query or None if no event matched.

Return type

Optional[Event]

get_latest_entity_values(entity_type, entity_role=None, entity_group=None)¶

Get entity values found for the passed entity type and optional role andgroup in latest message.

If you are only interested in the first entity of a given type usenext(tracker.get_latest_entity_values(“my_entity_name”), None).If no entity is found None is the default result.

Parameters

entity_type – the entity type of interest Teorema fondamentale del poker de.
entity_role – optional entity role of interest
entity_group – optional entity group of interest

Returns

Entity values.

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Return type

Iterator[str]

get_latest_input_channel()¶

Get the name of the input_channel of the latest UserUttered event

Return type

Optional[str]

get_slot(key)¶

Retrieves the value of a slot.

Return type

Optional[Any]

idx_after_latest_restart()¶

Return the idx of the most recent restart in the list of events.

If the conversation has not been restarted, 0 is returned.

Return type

int

init_copy()¶

Creates a new state tracker with the same initial values.

Return type

is_paused()¶

State whether the tracker is currently paused.

Return type

bool

last_executed_action_has(name, skip=0)¶

Returns whether last ActionExecuted event had a specific name.

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Parameters

name – Name of the event which should be matched.
skip – Skips n possible results in between.

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Returns

True if last executed action had name name, otherwise False.

Return type

bool

past_states(domain<