OptionalaccessOptionalattachmentsThe shopper may attach photos (see AssistantResource.uploadAttachments).
Show the chat at all.
First message shown in an empty chat. Empty string = none.
The assistant's display name.
OptionalsuggestedQuestions to offer as one-tap chips in an empty chat, in the language passed to AssistantResource.getConfig (plus those set for all languages).
Who may chat. Missing on older servers: treat as
everyone.