export type NavigationRailCollapsedVariant = 'vertical' | 'round';
export declare const NavigationRailCollapsedVariant: {
    readonly Vertical: 'vertical';
    readonly Round: 'round';
};
export interface INavigationRail {
    quick: boolean;
    expanded: boolean;
    modal: boolean;
    xr: boolean;
    collapsedVariant: NavigationRailCollapsedVariant;
    returnValue: string;
    expand(): Promise<void>;
    collapse(): Promise<void>;
}
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