These docs are for version 1.x of Rasa Open Source.

## User Guide

- [Installation](https://legacy-docs-v1.rasa.com/1.7.0/user-guide/installation/)
- [Tutorial: Rasa Basics](https://legacy-docs-v1.rasa.com/1.7.0/user-guide/rasa-tutorial/)
- [Tutorial: Building Assistants](https://legacy-docs-v1.rasa.com/1.7.0/user-guide/building-assistants/)
- [Command Line Interface](https://legacy-docs-v1.rasa.com/1.7.0/user-guide/command-line-interface/)
- [Architecture](https://legacy-docs-v1.rasa.com/1.7.0/user-guide/architecture/)
- [Messaging and Voice Channels](https://legacy-docs-v1.rasa.com/1.7.0/user-guide/messaging-and-voice-channels/)
- [Evaluating Models](https://legacy-docs-v1.rasa.com/1.7.0/user-guide/evaluating-models/)
- [Validate Data](https://legacy-docs-v1.rasa.com/1.7.0/user-guide/validate-files/)
- [Running the Server](https://legacy-docs-v1.rasa.com/1.7.0/user-guide/running-the-server/)
- [Running Rasa with Docker](https://legacy-docs-v1.rasa.com/1.7.0/user-guide/running-rasa-with-docker/)
- [Cloud Storage](https://legacy-docs-v1.rasa.com/1.7.0/user-guide/cloud-storage/)

## NLU

- [About](https://legacy-docs-v1.rasa.com/1.7.0/nlu/about/)
- [Using NLU Only](https://legacy-docs-v1.rasa.com/1.7.0/nlu/using-nlu-only/)
- [Training Data Format](https://legacy-docs-v1.rasa.com/1.7.0/nlu/training-data-format/)
- [Choosing a Pipeline](https://legacy-docs-v1.rasa.com/1.7.0/nlu/choosing-a-pipeline/)
- [Language Support](https://legacy-docs-v1.rasa.com/1.7.0/nlu/language-support/)
- [Entity Extraction](https://legacy-docs-v1.rasa.com/1.7.0/nlu/entity-extraction/)
- [Components](https://legacy-docs-v1.rasa.com/1.7.0/nlu/components/)

## Core

- [About](https://legacy-docs-v1.rasa.com/1.7.0/core/about/)
- [Stories](https://legacy-docs-v1.rasa.com/1.7.0/core/stories/)
- [Domains](https://legacy-docs-v1.rasa.com/1.7.0/core/domains/)
- [Responses](https://legacy-docs-v1.rasa.com/1.7.0/core/responses/)
- [Actions](https://legacy-docs-v1.rasa.com/1.7.0/core/actions/)
- [Policies](https://legacy-docs-v1.rasa.com/1.7.0/core/policies/)
- [Slots](https://legacy-docs-v1.rasa.com/1.7.0/core/slots/)
- [Forms](https://legacy-docs-v1.rasa.com/1.7.0/core/forms/)
- [Retrieval Actions](https://legacy-docs-v1.rasa.com/1.7.0/core/retrieval-actions/)
- [Interactive Learning](https://legacy-docs-v1.rasa.com/1.7.0/core/interactive-learning/)
- [Fallback Actions](https://legacy-docs-v1.rasa.com/1.7.0/core/fallback-actions/)
- [Knowledge Base Actions](https://legacy-docs-v1.rasa.com/1.7.0/core/knowledge-bases/)

## Conversation Design

- [Dialogue Elements](https://legacy-docs-v1.rasa.com/1.7.0/dialogue-elements/dialogue-elements/)
- [Small Talk](https://legacy-docs-v1.rasa.com/1.7.0/dialogue-elements/small-talk/)
- [Completing Tasks](https://legacy-docs-v1.rasa.com/1.7.0/dialogue-elements/completing-tasks/)
- [Guiding Users](https://legacy-docs-v1.rasa.com/1.7.0/dialogue-elements/guiding-users/)

## API Reference

- [Action Server](https://legacy-docs-v1.rasa.com/1.7.0/api/action-server/)
- [HTTP API](https://legacy-docs-v1.rasa.com/1.7.0/api/http-api/)
- [Jupyter Notebooks](https://legacy-docs-v1.rasa.com/1.7.0/api/jupyter-notebooks/)
- [Agent](https://legacy-docs-v1.rasa.com/1.7.0/api/agent/)
- [Custom NLU Components](https://legacy-docs-v1.rasa.com/1.7.0/api/custom-nlu-components/)
- [Rasa SDK](https://legacy-docs-v1.rasa.com/1.7.0/api/rasa-sdk/)
- [Events](https://legacy-docs-v1.rasa.com/1.7.0/api/events/)
- [Tracker](https://legacy-docs-v1.rasa.com/1.7.0/api/tracker/#)
- [Tracker Stores](https://legacy-docs-v1.rasa.com/1.7.0/api/tracker-stores/)
- [Event Brokers](https://legacy-docs-v1.rasa.com/1.7.0/api/event-brokers/)
- [Lock Stores](https://legacy-docs-v1.rasa.com/1.7.0/api/lock-stores/)
- [Training Data Importers](https://legacy-docs-v1.rasa.com/1.7.0/api/training-data-importers/)
- [Featurization of Conversations](https://legacy-docs-v1.rasa.com/1.7.0/api/core-featurization/)
- [Migration Guide](https://legacy-docs-v1.rasa.com/1.7.0/migration-guide/)
- [Rasa OSS Change Log](https://legacy-docs-v1.rasa.com/1.7.0/changelog/)

## Migrate from (beta)

- [Dialogflow](https://legacy-docs-v1.rasa.com/1.7.0/migrate-from/google-dialogflow-to-rasa/)
- [Wit.ai](https://legacy-docs-v1.rasa.com/1.7.0/migrate-from/facebook-wit-ai-to-rasa/)
- [LUIS](https://legacy-docs-v1.rasa.com/1.7.0/migrate-from/microsoft-luis-to-rasa/)
- [IBM Watson](https://legacy-docs-v1.rasa.com/1.7.0/migrate-from/ibm-watson-to-rasa/)

## Reference

- [Glossary](https://legacy-docs-v1.rasa.com/1.7.0/glossary/)

## Tracker

Trackers maintain the state of a dialogue between the assistant and the user in the form of conversation sessions. To learn more about how to configure the session behaviour, check out the docs on [Session configuration](https://legacy-docs-v1.rasa.com/1.7.0/core/domains/#session-config).

---

### `class` `rasa.core.trackers.DialogueStateTracker`  
Maintains the state of a conversation.

#### Methods

- `applied_events()`  
Returns all actions that should be applied - w/o reverted events.

- `as_dialogue()`  
Return a `Dialogue` object containing all of the turns.

- `current_slot_values()`  
Return the currently set values of the slots.

- `current_state()`  
Return the current tracker state as an object.

- `events_after_latest_restart()`  
Return a list of events after the most recent restart.

- `export_stories()`  
Dump the tracker as a story in the Rasa Core story format.

- `get_slot(key)`  
Retrieves the value of a slot.

- `is_paused()`  
State whether the tracker is currently paused.

- `trigger_followup_action(action)`  
Triggers another action following the execution of the current.