import { TableProps } from '../interfaces';
export declare const SELECTION_ITEM = "selection-item";
export declare class ItemSet<T> {
  private trackBy;
  private map;
  constructor(trackBy: TableProps.TrackBy<T> | undefined, items: ReadonlyArray<T>);
  put: (item: T) => Map<unknown, T>;
  has: (item: T) => boolean;
  forEach: (callbackfn: (value: T, key: unknown, map: Map<unknown, T>) => void, thisArg?: any) => void;
}
export declare const focusMarkers: {
  item: {
    [x: string]: string;
  };
  all: {
    [x: string]: string;
  };
  root: {
    [x: string]: string;
  };
};