How to use the @here/olp-sdk-dataservice-api.LookupApi.resourceAPIList function in @here/olp-sdk-dataservice-api

private async fetchAndCacheResourceApiList(
        hrn: string
    ): Promise {
        const apiList = await LookupApi.resourceAPIList(this.requestBuilder, {
            hrn
        }).catch((err: string) =>
            Promise.reject(
                new Error(`Error fetching api list for HRN: "${hrn}".\n${err}`)
            )
        );

        this.apiListCache.set(hrn, apiList as LookupApi.API[]);

        return Promise.resolve(apiList as LookupApi.API[]);
    }