import { Token } from '../di';
/**
 * A stack region.
 * @export
 * @enum {number}
 */
export declare enum StackRegion {
    NORTH = 0,
    SOUTH = 1,
    EAST = 2,
    WEST = 3
}
export declare const STACK_TAB_CLASS: Token<{}>;
export declare const STACK_HEADER_CLASS: Token<{}>;
export declare const STACK_ITEM_CONTAINER_CLASS: Token<{}>;
export declare const STACK_CLASS: Token<{}>;