export interface NgOption {
    [name: string]: any;
    index?: number;
    htmlId?: string;
    selected?: boolean;
    disabled?: boolean;
    marked?: boolean;
    label?: string;
    value?: string | any;
    parent?: NgOption;
    children?: NgOption[];
}
export declare enum KeyCode {
    Tab = 9,
    Enter = 13,
    Esc = 27,
    Space = 32,
    ArrowUp = 38,
    ArrowDown = 40,
    Backspace = 8
}
export type DropdownPosition = 'top' | 'right' | 'bottom' | 'left' | 'auto';