Date_Holidays_Filter_Whitelist | --Date_Holidays_Filter_Germany_NorthRhineWestphalia
Date_Holidays_Filter_Germany_NorthRhineWestphalia Date_Holidays_Filter_Germany_NorthRhineWestphalia( )
Only accepts official holidays in North Rhine-Westphalia.
Date_Holidays_Filter_Germany_NorthRhineWestphalia __construct( )