disposeRefSubscribers method
Implementation
void disposeRefSubscribers(String? ref)
{
if(ref != null)
{
_listeners.keys.where((sKey)=>sKey.regexp
.where((reg)=>reg.hasMatch(ref)).isNotEmpty)
.map((sKey)=>sKey).toList()
.forEach((sKey)=>unsubscribe(sKey));
}
}