export declare const isFunction: (fn: any) => boolean;
export declare const isObject: (fn: any) => boolean;
export declare const keysOf: (obj: any) => string[];
export declare const lengthOf: (obj: any) => number;
export declare const hasOwn: (obj: any, prop: any) => any;
export declare const convertMapToObject: (map: any) => unknown;
export declare function isArguments(obj: any): obj is ArrayLike<any>;
export declare const isInfOrNaN: (obj: any) => boolean;
export declare const checkError: {
    maxStack: (msgError: any) => boolean;
};
export declare function handleError<F extends (...args: any[]) => any>(fn: F, ...args: any[]): ReturnType<F>;