offDiagnostic method
Implementation
@override
void offDiagnostic({required DiagnosticHandler handler}) {
final subsription = h.diagntosticListenerHandlers.remove(handler);
subsription?.cancel();
}
@override
void offDiagnostic({required DiagnosticHandler handler}) {
final subsription = h.diagntosticListenerHandlers.remove(handler);
subsription?.cancel();
}