Unique ID for the multi-turn conversation. It's assigned for the first
turn. After that it remains the same for subsequent conversation turns
until the conversation is terminated.
Optional conversationToken
conversationToken:undefined | string
Opaque token specified by the Action in the last conversation turn. It can
be used by an Action to track the conversation or to store conversation
related data.
Unique ID for the multi-turn conversation. It's assigned for the first turn. After that it remains the same for subsequent conversation turns until the conversation is terminated.