language/Language.php
public static function GetGroupMap () {
		return [
			static::DE	=> static::GROUP_DE,
			static::EN	=> static::GROUP_EN,
			static::ES	=> static::GROUP_ES,
			static::FR	=> static::GROUP_FR,
			static::NL	=> static::GROUP_NL,
			static::PT	=> static::GROUP_PT,
			static::ZH	=> static::GROUP_ZH,
		];
	}
public static function GetGroupMap () {
		return [
			static::DE	=> static::GROUP_DE,
			static::EN	=> static::GROUP_EN,
			static::ES	=> static::GROUP_ES,
			static::FR	=> static::GROUP_FR,
			static::NL	=> static::GROUP_NL,
			static::PT	=> static::GROUP_PT,
			static::ZH	=> static::GROUP_ZH,
		];
	}
言語グループのマップを返します。

@return multitype:string