By executing the "user.get" method with 'selectMedias: "extend"' in Zabbix 6.4, Zabbix indicates that the following structure is returned: https://www.zabbix.com/documentation/current/en/manual/api/reference/user/object#media.

However, the fields "mediaid" and "userid" are returned in addition to the documented fields.

These fields would have to be added to the documentation.