Try to search esoui sources for it, on GithUb e.g. or download sirinsidiator's "addon" (esoui source code) and search them locally to find implementations:
https://github.com/esoui/esoui/blob/...nager.lua#L100
Not sure, but directly using the API function maybe a problem (ZOs needs to tell us)!
There exists the object ZO_HELP_GENERIC_TICKET_SUBMISSION_MANAGER of class ZO_Help_GenericTicketSubmission_Manager which you shoud use then to report the issues via the normal ticketing system.