export declare const getValueType: (value: unknown) => string;
export declare const isNull: (value: unknown) => boolean;
export declare const isString: (value: unknown) => boolean;
export declare const isNumber: (value: unknown) => boolean;
export declare const isBoolean: (value: unknown) => boolean;
export declare const isArray: (value: unknown) => boolean;
export declare const isObject: (value: unknown) => boolean;