payload property
This field can be used to pass custom data into the webhook associated with the agent.
Arbitrary JSON objects are supported. Some integrations that query a
Dialogflow agent may provide additional information in the payload. In
particular, for the Dialogflow Phone Gateway integration, this field has
the form: { "telephony": { "caller_id": "+18558363987" } }
The values for Object must be JSON objects. It can consist of num,
String, bool and null as well as Map and List values.
Implementation
core.Map<core.String, core.Object?>? payload;