import { AfterViewInit, ElementRef } from '@angular/core';
import * as i0 from "@angular/core";
export type CssUnit = `${number}${'px' | 'fr' | 'rem' | '%'}`;
export type ColumnSizes = CssUnit[];
export declare class GridColumnsDirective implements AfterViewInit {
    private el;
    columnSizes: import("@angular/core").InputSignal<ColumnSizes>;
    constructor(el: ElementRef);
    ngAfterViewInit(): void;
    private onResize;
    private generateColumns;
    private updateGridColumns;
    static ɵfac: i0.ɵɵFactoryDeclaration<GridColumnsDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<GridColumnsDirective, "[gridColumns]", never, { "columnSizes": { "alias": "columnSizes"; "required": false; "isSignal": true; }; }, {}, never, never, false, never>;
}