import { MessageFunctionType, Result } from '../types';
export interface IsIPErrors {
    TARGET_ARGUMENT_NOT_A_STRING: MessageFunctionType;
}
export declare const IS_IP_ERRORS: IsIPErrors;
/**
 * Tests whether the `target` string is an int
 *
 * ### Example
 * ```
 * expect(isIP('127.0.0.1').value).toBeTruthy()
 * ```
 *
 * @param target The target string
 * @param version The version
 */
export declare function isIP(target: string, version?: string): Result<boolean | undefined>;