import { MessageFunctionType, Result } from '../types';
export interface IsMD5Errors {
    TARGET_ARGUMENT_NOT_A_STRING: MessageFunctionType;
}
export declare const IS_MD5_ERRORS: IsMD5Errors;
/**
 * Checks whether the `target` string is a valid MD5 checksum
 *
 * ### Example
 * ```
 * expect(isMD5('d94f3f016ae679c3008de268209132f2').value).toBeTruthy()
 * ```
 * @param target The target string
 */
export declare function isMD5(target: string): Result<boolean | undefined>;