public PictureparkDisplayPatternAttribute(DisplayPatternType type, TemplateEngine templateEngine, string displayPattern, string language = null)
 {
     Type           = type;
     DisplayPattern = displayPattern;
     TemplateEngine = templateEngine;
     Language       = language;
 }
 public PictureparkDisplayPatternAttribute(DisplayPatternType type, TemplateEngine templateEngine, string displayPattern)
 {
     Type           = type;
     DisplayPattern = displayPattern;
     TemplateEngine = templateEngine;
 }