onStart method
Called once after program initialization.
Use send to inject messages (for example, replay scripts).
Implementation
@override
void onStart(void Function(Msg msg) send) {
_send = send;
for (final s in _stack) {
s.attachSend(send);
s.interceptor?.onStart(send);
}
for (final b in _base) {
b.onStart(send);
}
}