import { PipeTransform } from '@angular/core';
import * as i0 from "@angular/core";
export declare class ColumnNamesPipe implements PipeTransform {
    transform(data: any, allItems: any): string[];
    toggleCollapseSwimlane(column: any, allItems: any): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<ColumnNamesPipe, never>;
    static ɵpipe: i0.ɵɵPipeDeclaration<ColumnNamesPipe, "columnNames", true>;
}