How to use the @here/olp-sdk-dataservice-read.getEnvLookUpUrl function in @here/olp-sdk-dataservice-read

constructor(params: DataStoreContextParams) {
        this.lookUpUrl = getEnvLookUpUrl(params.environment);
        this.getToken = params.getToken;
        this.dm = params.dm || new DataStoreDownloadManager();
        this.environment = params.environment;
        this.requestBuilder = new DataStoreRequestBuilder(
            this.dm,
            this.lookUpUrl,
            this.getToken
        );
    }