@type display_type() ::
  :normal
  | :fold_start
  | :fold_continuation
  | :wrap_continuation
  | :fold_open
  | :blank

@type sign_type() ::
  :none
  | :git_added
  | :git_modified
  | :git_removed
  | :git_deleted
  | :diag_error
  | :diag_warning
  | :diag_info
  | :diag_hint
  | :annotation

@type t() :: %Minga.RenderModel.Window.GutterEntry{
  buf_line: non_neg_integer(),
  display_type: display_type(),
  fold_end_line: non_neg_integer(),
  sign_fg: non_neg_integer() | nil,
  sign_text: String.t() | nil,
  sign_type: sign_type()
}