import { FieldPath } from './FieldPath';
import { QueryConstraint, WhereFilterOp } from '../types/index';
export declare const where: (fieldPath: string | FieldPath, opStr: WhereFilterOp | string, value: any) => QueryConstraint;
export declare const orderBy: (fieldPath: string | FieldPath, directionStr?: "asc" | "desc") => QueryConstraint;
export declare const limit: (limitValue: number) => QueryConstraint;
export declare const startAt: (...docSnapshotOrValues: any[]) => QueryConstraint;
export declare const startAfter: (...docSnapshotOrValues: any[]) => QueryConstraint;
export declare const endAt: (...docSnapshotOrValues: any[]) => QueryConstraint;
export declare const endBefore: (...docSnapshotOrValues: any[]) => QueryConstraint;