import { BasedDbQuery } from '../BasedDbQuery.js';
import { FilterMetaNow, QueryDef, QueryDefFilter } from '../types.js';
type Fields = {
    separate: Set<number>;
    main: Set<number>;
};
export declare const collectFilters: (filter: QueryDefFilter, fields?: Fields, nowQueries?: FilterMetaNow[]) => FilterMetaNow[];
export declare const collectFields: (def: QueryDef) => Fields;
export declare const collectTypes: (def: QueryDef | QueryDefFilter, types?: Set<number>) => Set<number>;
export declare const registerSubscription: (query: BasedDbQuery) => void;
export {};