aggregator = this.actions$.pipe(
ofType<LoadUserById>(UserActionTypes.LoadUserById),
ofType<LoadUserByIdSuccess>(UserActionTypes.LoadUserByIdSuccess),
first(t => t.payload.id === a.payload.id)
ofType<Logged>(LogActionTypes.Logged),
first(t => t.payload.id === a.payload.id)
map(pair => new LoadAdminUserSuccess())