@type event() ::
  HfHub.Discussions.Comment.t()
  | HfHub.Discussions.StatusChange.t()
  | HfHub.Discussions.TitleChange.t()

@type status() :: :open | :closed | :merged | :draft

@type t() :: %HfHub.Discussions.DiscussionDetails{
  author: String.t(),
  created_at: DateTime.t() | nil,
  events: [event()],
  head_sha: String.t() | nil,
  is_pull_request: boolean(),
  merge_commit_oid: String.t() | nil,
  num: non_neg_integer(),
  status: status(),
  target_branch: String.t() | nil,
  title: String.t(),
  updated_at: DateTime.t() | nil
}