private static function get_dbuser_dbpass_args( $assoc_args ) {
		$mysql_args = array();
		$dbuser     = Utils\get_flag_value( $assoc_args, 'dbuser' );
		if ( null !== $dbuser ) {
			$mysql_args['dbuser'] = $dbuser;
		}
		$dbpass = Utils\get_flag_value( $assoc_args, 'dbpass' );
		if ( null !== $dbpass ) {
			$mysql_args['dbpass'] = $dbpass;
		}
		return $mysql_args;
	}