How to use the apollo-server-errors.PersistedQueryNotSupportedError function in apollo-server-errors

const request = requestContext.request;

  let { query, extensions } = request;

  let queryHash: string;

  let persistedQueryCache: KeyValueCache | undefined;
  metrics.persistedQueryHit = false;
  metrics.persistedQueryRegister = false;

  if (extensions && extensions.persistedQuery) {
    // It looks like we've received a persisted query. Check if we
    // support them.
    if (!config.persistedQueries || !config.persistedQueries.cache) {
      throw new PersistedQueryNotSupportedError();
    } else if (extensions.persistedQuery.version !== 1) {
      throw new InvalidGraphQLRequestError(
        'Unsupported persisted query version',
      );
    }

    // We'll store a reference to the persisted query cache so we can actually
    // do the write at a later point in the request pipeline processing.
    persistedQueryCache = config.persistedQueries.cache;

    // This is a bit hacky, but if `config` came from direct use of the old
    // apollo-server 1.0-style middleware (graphqlExpress etc, not via the
    // ApolloServer class), it won't have been converted to
    // PrefixingKeyValueCache yet.
    if (!(persistedQueryCache instanceof PrefixingKeyValueCache)) {
      persistedQueryCache = new PrefixingKeyValueCache(