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Darse de baja no es un parámetro asignable

Estoy usando mecanografiado con reaccionar y estoy tratando de cancelar la suscripción de un observador de firestore. Funciona cuando lo uso en js pero no cuando lo uso en mecanografiado. ¿Cómo hago esto correctamente? Aquí está mi código

 const notifications = collection(db, USER_ID_STRING, 'dfgdfg', NOTIFICATIONS_STRING); const loadAlerts =useCallback( () => { const alertNotifcationsObserver = onSnapshot(notifications, (querySnapshot) => { const alertData: any[] = [] querySnapshot.forEach((doc) => { alertData.push({ ...doc.data(), }) }); setAlertNotifcations(alertData) }); return alertNotifcationsObserver },[notifications]) useEffect(() => { loadAlerts(); return ()=>loadAlerts() }, [loadAlerts]);

aquí está mi error

 Argument of type '() => () => Unsubscribe' is not assignable to parameter of type 'EffectCallback'. Type '() => Unsubscribe' is not assignable to type 'void | Destructor'. Type '() => Unsubscribe' is not assignable to type 'Destructor'. Type 'Unsubscribe' is not assignable to type 'void | { [UNDEFINED_VOID_ONLY]: never; }'. Property '[UNDEFINED_VOID_ONLY]' is missing in type 'Unsubscribe' but required in type '{ [UNDEFINED_VOID_ONLY]: never; }'.ts(2345) index.d.ts(58, 34): '[UNDEFINED_VOID_ONLY]' is declared here. board.tsx(69, 15): Did you mean to call this expression?
about 4 years ago · Juan Pablo Isaza
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