/**
 * Prepares information for calls to get catalog metadata from the platform Config Service.
 */
export declare class CatalogRequest {
    private billingTag?;
    /**
     * An optional free-form tag that is used for grouping billing records together.
     * If supplied, it must be 4–16 characters long and contain only alphanumeric ASCII characters [A-Za-z0-9].
     *
     * @param tag The `BillingTag` string.
     * @return The updated [[CatalogRequest]] instance that you can use to chain methods.
     */
    withBillingTag(tag: string): CatalogRequest;
    /**
     * Gets a billing tag to group billing records together.
     *
     * @return The `BillingTag` string.
     */
    getBillingTag(): string | undefined;
}