Input$MessageGroupWallpaperInput constructor
      
      Input$MessageGroupWallpaperInput({ 
    
    
- Input$PictureInput? picture,
 - List<
String> ? gradientColors, - String? assetImage,
 
Implementation
factory Input$MessageGroupWallpaperInput({
  Input$PictureInput? picture,
  List<String>? gradientColors,
  String? assetImage,
}) =>
    Input$MessageGroupWallpaperInput._({
      if (picture != null) r'picture': picture,
      if (gradientColors != null) r'gradientColors': gradientColors,
      if (assetImage != null) r'assetImage': assetImage,
    });