export declare function isUndefined(value: any): boolean;
export declare function isNull(value: any): boolean;
export declare function isFunction(value: any): boolean;
export declare function isNumber(value: any): boolean;
export declare function isString(value: any): boolean;
export declare function isBoolean(value: any): boolean;
export declare function isObject(value: any): boolean;
export declare function isNumberFinite(value: any): boolean;
export declare function isVowel(letter: string): boolean;
export declare function ucFirst(text: string): string;
export declare function applyPrecision(num: number, precision: number): number;
export declare function extractDeepPropertyByMapKey(obj: any, map: string): any;
export declare function extractDeepPropertyByParentMapKey(obj: any, map: string): any;
export declare function getKeysTwoObjects(obj: any, other: any): any;
export declare function isDeepEqual(obj: any, other: any): any;