export declare function isVirtualKey(e: KeyboardEvent): boolean;
export declare const isExpandHotkey: (event: KeyboardEvent) => boolean;
export declare const isTabHotkey: (event: KeyboardEvent) => boolean;
export declare const isEnterHotkey: (event: KeyboardEvent) => boolean;
export declare const isSpaceHotkey: (event: KeyboardEvent) => boolean;
export declare const isDelete: (event: KeyboardEvent) => boolean;