public static function sign_in( \Auth\User $user, $keep_loggedin = true, $name = null )
	{
		return Handler::create( $name )->sign_in( $user, $keep_loggedin );
	}
public static function sign_in( \Auth\User $user, $keep_loggedin = true, $name = null )
	{
		return Handler::create( $name )->sign_in( $user, $keep_loggedin );
	}
public static function sign_in ( \ Auth \ User $ user , $ keep_loggedin = true , $ name = null ) { return Handler :: create ( $ name ) -> sign_in ( $ user , $ keep_loggedin ) ; }
Sign in a user

@param Auth\User		$user
@param string			$keep_loggedin
@param string			$name				The auth instance
@return bool
Sign in a user