export interface BalFocusObserver {
    el: HTMLElement;
    hasFocus: boolean;
    focusInListener(ev: FocusEvent): void;
    focusOutListener(ev: FocusEvent): void;
}
export type BalFocusInfo = {
    isFocusIn: boolean;
    isFocusOut: boolean;
    ev: FocusEvent;
};
export type BalFocusListenerFn = (info: BalFocusInfo) => void;