import type { CollectionReference, DocumentData, DocumentSnapshot, FieldPath, OrderByDirection, Query, WhereFilterOp } from '@firebase/firestore-types';
declare type QueryWhere = [fieldPath: string | FieldPath, opStr: WhereFilterOp, value: unknown];
declare type QueryOrderBy = [fieldPath: string | FieldPath, directionStr?: OrderByDirection];
declare type QueryLeftJoin = [idField: string, collection: string, alias: string];
declare type QueryCursor = [snapshot: DocumentSnapshot<unknown>] | unknown[];
export declare class QueryBuilder {
    private _where;
    private _orderBy;
    private _leftJoins;
    private _limit?;
    private _limitToLast?;
    private _startAt?;
    private _startAfter?;
    private _endAt?;
    private _endBefore?;
    get joins(): QueryLeftJoin[];
    where(...where: QueryWhere): this;
    orderBy(...orderBy: QueryOrderBy): this;
    leftJoin(...leftJoin: QueryLeftJoin): void;
    limit(limit: number): this;
    limitToLast(limitToLast: number): this;
    startAt(...startAt: QueryCursor): this;
    startAfter(...startAfter: QueryCursor): this;
    endAt(...endAt: QueryCursor): this;
    endBefore(...endBefore: QueryCursor): this;
    exec(ref: CollectionReference<DocumentData> | any, queryOps?: {
        [key: string]: any;
    }): Query<DocumentData> | any;
    private execQueryForCloud;
}
export {};