Values of this type are objects. They contain the following properties:

id

string. The unique identifier for the history.HistoryItem associated with this visit.

visitId

string. The unique identifier for this visit.

visitTime Optional

number. When this visit occurred, represented in milliseconds since the epoch.

referringVisitId

string. The visit ID of the referrer.

transition

history.TransitionType. Describes how the browser navigated to the page on this occasion.