import { Direction, Directionality } from '@angular/cdk/bidi';
import { OnDestroy } from '@angular/core';
import * as i0 from "@angular/core";
export declare class TextDirectionality extends Directionality implements OnDestroy {
    /**
     * The current 'ltr' or 'rtl' value.
     * @override
     */
    value: Direction;
    constructor(_document?: any);
    ngOnDestroy(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<TextDirectionality, [{ optional: true; }]>;
    static ɵprov: i0.ɵɵInjectableDeclaration<TextDirectionality>;
}
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