developers.home-assistant/docs/intent_firing.md

title
Firing intents

When you fire an intent, you will get a response back or an error will be raised. It is up to the component to return the result to the user.

Example code to handle an intent in Home Assistant.

from homeassistant.helpers import intent

intent_type = "TurnLightOn"
slots = {"entity": {"value": "Kitchen"}}

try:
    intent_response = yield from intent.async_handle(
        hass, "example_component", intent_type, slots
    )

except intent.UnknownIntent as err:
    _LOGGER.warning("Received unknown intent %s", intent_type)

except intent.InvalidSlotInfo as err:
    _LOGGER.error("Received invalid slot data: %s", err)

except intent.IntentError:
    _LOGGER.exception("Error handling request for %s", intent_type)

The intent response is an instance of homeassistant.helpers.intent.IntentResponse.

Name	Type	Description
intent	Intent	Instance of intent that triggered response.
speech	Dictionary	Speech responses. Each key is a type. Allowed types are plain and ssml.
card	Dictionary	Card responses. Each key is a type.

Speech dictionary values:

Name	Type	Description
speech	String	The text to say
extra_data	Any	Extra information related to this speech.

Card dictionary values:

Name	Type	Description
title	String	The title of the card
content	Any	The content of the card