import { TypeGuardWithReturnType, TypeGuardInverted } from '../types'; export declare const isEmpty: (value: "" | T) => value is TypeGuardWithReturnType; export declare const isNotEmpty: (value: T) => value is TypeGuardInverted; export declare const isPropertyEmpty: (property: K) => (value: T) => boolean; export declare const isPropertyNotEmpty: (property: K) => (value: T) => boolean; export declare const arePropertiesEmpty: (...properties: K[]) => (value: T) => boolean; export declare const arePropertiesNotEmpty: (...properties: K[]) => (value: T) => boolean;