import { PipeTransform } from "@angular/core";
import * as i0 from "@angular/core";
export declare function defaultReducer(result: any): any;
export declare class ReducePipe implements PipeTransform {
    transform(values: any[], source: any, reducer?: any, params?: any): any;
    static ɵfac: i0.ɵɵFactoryDeclaration<ReducePipe, never>;
    static ɵpipe: i0.ɵɵPipeDeclaration<ReducePipe, "reduce", false>;
}