import { StageInterface } from "../core/stage.interface";
export interface MergeStageInterface {
    into: any;
    on?: string | string[];
    whenMatched?: WhenMatchedType | StageInterface[];
    let?: {
        [key: string]: any;
    };
    whenNotMatched?: WhenNotMatchedType;
}
export declare type WhenMatchedType = 'replace' | 'keepExisting' | 'merge' | 'fail' | 'pipeline';
export declare type WhenNotMatchedType = 'insert' | 'discard' | 'fail';