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

### User Guide

- [Installation](https://legacy-docs-v1.rasa.com/1.7.4/user-guide/installation/)
- [Tutorial: Rasa Basics](https://legacy-docs-v1.rasa.com/1.7.4/user-guide/rasa-tutorial/)
- [Tutorial: Building Assistants](https://legacy-docs-v1.rasa.com/1.7.4/user-guide/building-assistants/)
- [Command Line Interface](https://legacy-docs-v1.rasa.com/1.7.4/user-guide/command-line-interface/)
- [Architecture](https://legacy-docs-v1.rasa.com/1.7.4/user-guide/architecture/)
- [Messaging and Voice Channels](https://legacy-docs-v1.rasa.com/1.7.4/user-guide/messaging-and-voice-channels/)
- [Evaluating Models](https://legacy-docs-v1.rasa.com/1.7.4/user-guide/evaluating-models/)
- [Validate Data](https://legacy-docs-v1.rasa.com/1.7.4/user-guide/validate-files/)
- [Configuring the HTTP API](https://legacy-docs-v1.rasa.com/1.7.4/user-guide/configuring-http-api/)
- [Deploying your Rasa Assistant](https://legacy-docs-v1.rasa.com/1.7.4/user-guide/how-to-deploy/)
- [Cloud Storage](https://legacy-docs-v1.rasa.com/1.7.4/user-guide/cloud-storage/)

### NLU

- [About](https://legacy-docs-v1.rasa.com/1.7.4/nlu/about/)
- [Using NLU Only](https://legacy-docs-v1.rasa.com/1.7.4/nlu/using-nlu-only/)
- [Training Data Format](https://legacy-docs-v1.rasa.com/1.7.4/nlu/training-data-format/)
- [Choosing a Pipeline](https://legacy-docs-v1.rasa.com/1.7.4/nlu/choosing-a-pipeline/)
- [Language Support](https://legacy-docs-v1.rasa.com/1.7.4/nlu/language-support/)
- [Entity Extraction](https://legacy-docs-v1.rasa.com/1.7.4/nlu/entity-extraction/)
- [Components](https://legacy-docs-v1.rasa.com/1.7.4/nlu/components/)

### Core

- [About](https://legacy-docs-v1.rasa.com/1.7.4/core/about/)
- [Stories](https://legacy-docs-v1.rasa.com/1.7.4/core/stories/)
- [Domains](https://legacy-docs-v1.rasa.com/1.7.4/core/domains/)
- [Responses](https://legacy-docs-v1.rasa.com/1.7.4/core/responses/)
- [Actions](https://legacy-docs-v1.rasa.com/1.7.4/core/actions/)
- [Policies](https://legacy-docs-v1.rasa.com/1.7.4/core/policies/)
- [Slots](https://legacy-docs-v1.rasa.com/1.7.4/core/slots/)
- [Forms](https://legacy-docs-v1.rasa.com/1.7.4/core/forms/)
- [Retrieval Actions](https://legacy-docs-v1.rasa.com/1.7.4/core/retrieval-actions/)
- [Interactive Learning](https://legacy-docs-v1.rasa.com/1.7.4/core/interactive-learning/)
- [Fallback Actions](https://legacy-docs-v1.rasa.com/1.7.4/core/fallback-actions/)
- [Knowledge Base Actions](https://legacy-docs-v1.rasa.com/1.7.4/core/knowledge-bases/)

### Conversation Design

- [Dialogue Elements](https://legacy-docs-v1.rasa.com/1.7.4/dialogue-elements/dialogue-elements/)
- [Small Talk](https://legacy-docs-v1.rasa.com/1.7.4/dialogue-elements/small-talk/)
- [Completing Tasks](https://legacy-docs-v1.rasa.com/1.7.4/dialogue-elements/completing-tasks/)
- [Guiding Users](https://legacy-docs-v1.rasa.com/1.7.4/dialogue-elements/guiding-users/)

### API Reference

- [Action Server](https://legacy-docs-v1.rasa.com/1.7.4/api/action-server/)
- [HTTP API](https://legacy-docs-v1.rasa.com/1.7.4/api/http-api/)
- [Jupyter Notebooks](https://legacy-docs-v1.rasa.com/1.7.4/api/jupyter-notebooks/)
- [Agent](https://legacy-docs-v1.rasa.com/1.7.4/api/agent/)
- [Custom NLU Components](https://legacy-docs-v1.rasa.com/1.7.4/api/custom-nlu-components/)
- [Rasa SDK](https://legacy-docs-v1.rasa.com/1.7.4/api/rasa-sdk/)
- [Events](https://legacy-docs-v1.rasa.com/1.7.4/api/events/)
- [Tracker](https://legacy-docs-v1.rasa.com/1.7.4/api/tracker/#)
- [Tracker Stores](https://legacy-docs-v1.rasa.com/1.7.4/api/tracker-stores/)
- [Event Brokers](https://legacy-docs-v1.rasa.com/1.7.4/api/event-brokers/)
- [Lock Stores](https://legacy-docs-v1.rasa.com/1.7.4/api/lock-stores/)
- [Training Data Importers](https://legacy-docs-v1.rasa.com/1.7.4/api/training-data-importers/)
- [Featurization of Conversations](https://legacy-docs-v1.rasa.com/1.7.4/api/core-featurization/)
- [Migration Guide](https://legacy-docs-v1.rasa.com/1.7.4/migration-guide/)
- [Rasa OSS Change Log](https://legacy-docs-v1.rasa.com/1.7.4/changelog/)

### Migrate from (beta)

- [Dialogflow](https://legacy-docs-v1.rasa.com/1.7.4/migrate-from/google-dialogflow-to-rasa/)
- [Wit.ai](https://legacy-docs-v1.rasa.com/1.7.4/migrate-from/facebook-wit-ai-to-rasa/)
- [LUIS](https://legacy-docs-v1.rasa.com/1.7.4/migrate-from/microsoft-luis-to-rasa/)
- [IBM Watson](https://legacy-docs-v1.rasa.com/1.7.4/migrate-from/ibm-watson-to-rasa/)

### Reference

- [Glossary](https://legacy-docs-v1.rasa.com/1.7.4/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/1.7.4/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.
- `change_form_to(form_name)` : Activate or deactivate a form.
- `clear_followup_action()` : Clears follow up action when it was executed.
- `copy()` : Creates a duplicate of this tracker.
- `current_slot_values()` : Return the currently set values of the slots.
- `current_state(event_verbosity=<EventVerbosity.NONE: 1>)` : Return the current tracker state as an object.
- `events_after_latest_restart()` : Return a list of events after the most recent restart.
- `export_stories(e2e=False, include_source=False)` : Dump the tracker as a story in the Rasa Core story format.
- `export_stories_to_file(export_path='debug.md')` : Dump the tracker as a story to a file.
- `from_dict(sender_id, events_as_dict, slots=None, max_event_history=None)` : Create a tracker from dump.

👋 I can help you get started with Rasa and answer your technical questions.