Factory.php

<?php

namespace Illuminate\Contracts\Auth;

interface Factory
{
    /**
     * Get a guard instance by name.
     *
     * @param  string|null  $name
     * @return \Illuminate\Contracts\Auth\Guard|\Illuminate\Contracts\Auth\StatefulGuard
     */
    public function guard($name = null);

    /**
     * Set the default guard the factory should serve.
     *
     * @param  string  $name
     * @return void
     */
    public function shouldUse($name);
}
	<?php

	namespace Illuminate\Contracts\Auth;

	interface Factory
	{
	/**
	* Get a guard instance by name.
	*
	* @param string\|null $name
	* @return \Illuminate\Contracts\Auth\Guard\|\Illuminate\Contracts\Auth\StatefulGuard
	*/
	public function guard($name = null);

	/**
	* Set the default guard the factory should serve.
	*
	* @param string $name
	* @return void
	*/
	public function shouldUse($name);
	}