import { QueryBuilder } from './query-builder';
import { CombinedQuery } from './combined-query';
import { Ref } from '../ref';
export declare class CombinedQueryBuilder {
    readonly queries: Readonly<(string | QueryBuilder)[]>;
    constructor(queries: Readonly<(string | QueryBuilder | CombinedQueryBuilder)[]>);
    protected queryToRefMap(): Map<QueryBuilder, Ref[]>;
    protected defineRefs(): (string | QueryBuilder)[];
    build(): CombinedQuery;
}