import { type OnChanges } from '@angular/core';
import * as i0 from "@angular/core";
import * as i1 from "@taiga-ui/core/components/button";
import * as i2 from "@taiga-ui/kit/directives/chevron";
export declare class TuiAccordionDirective implements OnChanges {
    private readonly accordion;
    readonly open: import("@angular/core").ModelSignal<boolean | "">;
    readonly id: string;
    readonly size: import("@angular/core").InputSignal<"m" | "s" | "l">;
    readonly chevron: import("@angular/core").ModelSignal<boolean | "">;
    ngOnChanges(): void;
    toggle(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<TuiAccordionDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<TuiAccordionDirective, "button[tuiAccordion]", never, { "open": { "alias": "tuiAccordion"; "required": false; "isSignal": true; }; }, { "open": "tuiAccordionChange"; }, never, never, true, [{ directive: typeof i1.TuiButton; inputs: {}; outputs: {}; }, { directive: typeof i2.TuiChevron; inputs: {}; outputs: {}; }]>;
}