<?php 
declare(strict_types=1); 
namespace ParagonIE\Paseto\Keys\Version1; 
 
use ParagonIE\Paseto\Keys\SymmetricKey as BaseSymmetricKey; 
use ParagonIE\Paseto\Protocol\Version1; 
use ParagonIE\Paseto\ProtocolInterface; 
 
/** 
 * Class SymmetricKey 
 * @package ParagonIE\Paseto\Keys\Version1 
 */ 
class SymmetricKey extends BaseSymmetricKey 
{ 
    /** 
     * SymmetricKey constructor. 
     * 
     * @param string $keyMaterial 
     * @param ProtocolInterface|null $protocol 
     */ 
    public function __construct( 
        string $keyMaterial, 
        ProtocolInterface $protocol = null 
    ) { 
        return parent::__construct($keyMaterial, new Version1()); 
    } 
} 
 
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