position of the item in the source section.
A map of custom labels to be associated with the page view event. Blank values are ignored and not sent. Defaults to an empty map.
id of the source page → page from which the media was played e.g. homepage, detail page, search, ...
version of the source page (e.g. for A/B test).
id of the source section → section from which the media was played.
position of the section in the page.
version of the source section (e.g. for A/B test).