/** Default page size for invoicing list / infinite-scroll requests. */
export declare const INVOICING_LIST_PAGE_SIZE = 50;
/** Append a query string (with leading `?`) when params are present. */
export declare const withQuery: (path: string, params: URLSearchParams) => string;
/**
 * Server-side sort descriptor shared by all invoicing list views. `field` is the
 * backend sort key (validated against a per-entity whitelist); `dir` mirrors the
 * DataListTable sort direction.
 */
export interface InvoicingListSort {
    dir: 'asc' | 'desc';
    field: string;
}
/** Attach `sort_field`/`sort_dir` to a list query when a sort is active. */
export declare const applyListSortParams: (params: URLSearchParams, sort?: InvoicingListSort) => void;