endStatsSubscriptions method
Ends the stats.live subscription of every connection of principalId with one error {op: stats.subscribe} with code, as the server does when stats.read is lost (25 5.1
item 3).
Implementation
void endStatsSubscriptions(String principalId, {String code = 'forbidden'}) {
for (final c in _open) {
if (c.principalId != principalId || c.session?.stats == null) continue;
c.session!.stats = null;
_send(c, 'error', {'op': 'stats.subscribe', 'code': code});
}
}