@type t() :: %DocRedlines.Redline{
  author: String.t() | nil,
  char_offset: non_neg_integer() | nil,
  context: String.t() | nil,
  end_cp: non_neg_integer(),
  paragraph_index: non_neg_integer() | nil,
  start_cp: non_neg_integer(),
  text: String.t(),
  timestamp: String.t() | nil,
  type: :insertion | :deletion
}