src/vs/workbench/common/memento.ts/Memento/saveMemento
class Memento:	saveMemento(): void {
		Memento.workspaceMementos.get(this.id)?.save();
		Memento.profileMementos.get(this.id)?.save();
		Memento.applicationMementos.get(this.id)?.save();
	}