export declare const isMac: boolean;
export declare const isWin: boolean;
export declare const ctrlKeyStr: string;
export declare const shiftKeyStr: string;
export declare const deleteKeyStr: string;
export declare const ctrlKey: string;
export declare const shiftKey = "shift";
export declare const isCtrlKey: (e: KeyboardEvent) => boolean;
export declare const isDeleteKey: (e: KeyboardEvent) => boolean;
export declare const isInputTag: (el: HTMLElement) => boolean;