/**
 * Do not edit this file it is auto-generated by io-utils / gen-api-models.
 * See https://github.com/pagopa/io-utils
 */
import * as t from "io-ts";
/**
 * The (optional) subject of the message - note that only some notification
 * channels support the display of a subject. When a subject is not provided,
 * one gets generated from the client attributes.
 */
export type MessageSubject = t.TypeOf<typeof MessageSubject>;
export declare const MessageSubject: import("@pagopa/ts-commons/lib/types").Tagged<import("@pagopa/ts-commons/lib/strings").IWithinRangeStringTag<10, 121>, string, string, unknown>;