export declare const isEmpty: (obj: any) => boolean;
export declare const getWidthByText: (text: string, font: string) => number;
export declare const usePrevious: (value: any) => undefined;
export declare const isEqual: (obj1: any, obj2: any) => boolean;
export declare const urlQueryParser: (searchString: string) => any;
export declare const urlSearchQueryStringify: (searchObject: any) => string;
export declare const getValidInteger: (numberString: string) => string;
export declare const getBradcrumbsUrl: (menus: any, label: any) => any;