/**
 * #3295 The ARIA attributes of a shy button. The toolbar button and its entry in the secondary
 * menu both use this function, so screen readers announce them the same way.
 *
 * Each state only where it applies: aria-expanded only on a button that opens something,
 * aria-checked only on a radio, aria-pressed only on a toggle button.
 */
export interface ShyButtonAria {
    role: string | null;
    expanded: 'true' | 'false' | null;
    checked: 'true' | 'false' | null;
    pressed: 'true' | 'false' | null;
    haspopup: string | null;
    controls: string | null;
}
export interface ShyButtonAriaInput {
    toggled: boolean;
    toggleButton?: boolean | undefined;
    role?: string | undefined;
    ariaHasPopup?: boolean | 'true' | 'menu' | 'dialog' | undefined;
    ariaControls?: string | undefined;
}
export declare function shyButtonAria({ toggled, toggleButton, role, ariaHasPopup, ariaControls }: ShyButtonAriaInput): ShyButtonAria;