How to use the @here/olp-sdk-dataservice-api.ConfigApi.getCatalog function in @here/olp-sdk-dataservice-api

public async getCatalog(
        request: CatalogRequest,
        abortSignal?: AbortSignal
    ): Promise {
        const builder = await this.getRequestBuilder(
            "config",
            undefined,
            abortSignal
        );

        return ConfigApi.getCatalog(builder, {
            catalogHrn: this.hrn,
            billingTag: request.getBillingTag()
        }).catch((err: Response) =>
            Promise.reject(
                `Can't load catalog configuration. HRN: ${this.hrn}, error: ${err}`
            )
        );
    }