OptionallinkedlinkedId is a way of linking current identification event with a custom identifier.
This can be helpful to be able to filter API visit information later.
OptionaltagTag is a user-provided value or object that will be returned back to you in a webhook message.
You may want to use the tag value to be able to associate a server-side webhook event with a web request of the
current visitor.
What values can be used as a tag?
Anything that identifies a visitor or a request.
You can pass the event_id as a tag and then get this event_id back in the webhook, associated with a visitorId.
OptionaltimeoutControls client-side timeout. Client timeout controls total time (both client-side and server-side) that any identification event is allowed to run. It doesn't include time when the page is in background (not visible). The value is in milliseconds.
Options for requesting the visitor information