Since: 1.38.0
Update Page Properties
Call -[FSPage updateProperties:] to merge properties into the page's existing
properties. This update is recursive such that nested maps will be updated
by merging as well, instead of being replaced.
Calls to -[FSPage updateProperties:] will not be reflected for page views that
have already ended, but any updates made to the properties will still be
reflected the next time -[FSPage start] is called.
Parameters
properties NSDictionary<NSString *, id> * optional
A Dictionary containing properties of the page that will be indexed by Fullstory.