<?php
/**
* @see https://github.com/laminas/laminas-stdlib for the canonical source repository
* @copyright https://github.com/laminas/laminas-stdlib/blob/master/COPYRIGHT.md
* @license https://github.com/laminas/laminas-stdlib/blob/master/LICENSE.md New BSD License
*/
namespace Laminas\Stdlib;
interface MessageInterface
{
/**
* Set metadata
*
* @param string|int|array|\Traversable $spec
* @param mixed $value
*/
public function setMetadata($spec, $value = null);
/**
* Get metadata
*
* @param null|string|int $key
* @return mixed
*/
public function getMetadata($key = null);
/**
* Set content
*
* @param mixed $content
* @return mixed
*/
public function setContent($content);
/**
* Get content
*
* @return mixed
*/
public function getContent();
}