addHandler method
Implementation
void addHandler(String type, ProtocolMessageHandler handler) {
if (handlers.containsKey(type)) {
throw StateError('already registered handler for $type');
}
handlers[type] = handler;
}
void addHandler(String type, ProtocolMessageHandler handler) {
if (handlers.containsKey(type)) {
throw StateError('already registered handler for $type');
}
handlers[type] = handler;
}