A real IGoogleCalendarLike over calendar.events.list. The first poll requests a forward
window (timeMin..timeMax, singleEvents, ordered) so Google returns an initial nextSyncToken;
later polls pass the syncToken (between polls) or pageToken (within a poll) verbatim. The
constructed client is built once on first use and reused.
A real IGoogleCalendarLike over
calendar.events.list. The first poll requests a forward window (timeMin..timeMax,singleEvents, ordered) so Google returns an initialnextSyncToken; later polls pass thesyncToken(between polls) orpageToken(within a poll) verbatim. The constructed client is built once on first use and reused.