StoryArea constructor
      const
      StoryArea({ 
    
- @JsonKey.new(name: 'position') required StoryAreaPosition position,
 - @JsonKey.new(name: 'type') required StoryAreaType type,
 
Creates a new StoryArea object.
Implementation
const factory StoryArea({
  /// Position of the area
  @JsonKey(name: 'position') required StoryAreaPosition position,
  /// Type of the area
  @JsonKey(name: 'type') required StoryAreaType type,
}) = _StoryArea;