import { PipeTransform } from '@angular/core';
import { PghTreeFlatNode } from './tree.constants';
import * as i0 from "@angular/core";
export declare class PghTreeNodeIdPipe implements PipeTransform {
    transform(node: PghTreeFlatNode): string;
    static ɵfac: i0.ɵɵFactoryDeclaration<PghTreeNodeIdPipe, never>;
    static ɵpipe: i0.ɵɵPipeDeclaration<PghTreeNodeIdPipe, "pghTreeNodeId", false>;
}