subscribe method
Implementation
SubscriptionHandler subscribe(
String name,
List<dynamic> params, {
Function Function(dynamic error)? onStop,
Function? onReady,
}) {
var id = name + '-' + _generateUID(16);
_subscriptions[id] = SubscriptionCallback(onStop: onStop, onReady: onReady);
params = DdpClient.escapeSpecialFieldValues(params);
var handler = SubscriptionHandler(this, id, name, params);
_subscriptionHandlers[id] = handler;
_sendMsgSub(id, name, params);
return handler;
}