export declare function isUndefined(value: unknown): value is undefined;
export declare function isNull(value: unknown): value is null;
export declare function isFunction(value: unknown): value is (...args: unknown[]) => unknown;
export declare function isNumber(value: unknown): value is number;
export declare function isString(value: unknown): value is string;
export declare function isBoolean(value: unknown): value is boolean;
export declare function isObject(value: any): boolean;
export declare function isNumberFinite(value: unknown): value is number;
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: Record<string, unknown>, map: string): any;
export declare function extractDeepPropertyByParentMapKey(obj: Record<string, unknown>, map: string): any;
export declare function getKeysTwoObjects(obj: object, other: object): string[];
export declare function isDeepEqual(obj: any, other: any): any;
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