How to clear cache using optimisticResponse

Help
,
1

In the optimisticResponse usage there is talk about adding cache but nothing about deleting…
How to clear cache using optimisticResponse?

URL

const UNLIKE_TRACK_ACTIVITY = gql`
  mutation UNLIKE_TRACK($trackId: Int!) {
    unlikeTrack: unlike_track(track_id: $trackId) {
      id
    }
  }
`;

 const [fetch, { loading }] = useMutation<Result, Args>(UNLIKE_TRACK_ACTIVITY, {
    update(cache, { data }) {
      ...
    },
    optimisticResponse({ trackActivityId }) {
      return {
        unlikeTrack: {
           ????
        }
      };
    }
  });