public static function maps(array $mappings, $key = 'default')
	{
		self::$mappings = array_merge_recursive(self::$mappings, [ $key => $mappings ]);
	}
public static function maps(array $mappings, $key = 'default')
	{
		self::$mappings = array_merge_recursive(self::$mappings, [ $key => $mappings ]);
	}
public static function maps ( array $ mappings , $ key = 'default' ) { self :: $ mappings = array_merge_recursive ( self :: $ mappings , [ $ key => $ mappings ] ) ; }
Register mappings.

@param  array  $mappings
@return void
Register mappings .