Function on

apps/desktop/scripts/desktop-display-transport-benchmark.js:385–389

(method, handler)

			});
		},
		on(method, handler) {
			const handlers = eventHandlers.get(method) ?? new Set();
			handlers.add(handler);
			eventHandlers.set(method, handlers);
		},
		off(method, handler) {
			const handlers = eventHandlers.get(method);
			if (!handlers) return;