// This is an example of a definition.
Forum.Models.Post
  +glyphs <Array<String>>
  -id <UUID>
  -created_at <Date>
  -parent_id <UUID>
  -text <String>
  -author <Author>
  // Comments are also
  // Allowed in the middle
  ~>textUpdated(text <String>)
  ->authorUpdated(author <Author>)
  <~textWillUpdate(text <String>)
  <-postWillRender(post <Forum.Models.Post>)
  +>authorUpdated(author <Author>)
  <+textWillUpdate(text <String>)
  ::getAll(parent_id <UUID>) => Promise<Array<Forum.Models.Post>> #> NotFoundError,DisplayError
  ::get(id <UUID>) => Promise<Forum.Models.Post>
  #update(text <String>) => Promise<void>
  #transform([transformer] <Function<T>(T) => boolean>)