@type t() :: %Obscura.Anonymizer.Item{
  entity: atom(),
  metadata: map(),
  operator: atom(),
  replacement: String.t(),
  replacement_byte_end: non_neg_integer(),
  replacement_byte_start: non_neg_integer(),
  source_byte_end: non_neg_integer(),
  source_byte_start: non_neg_integer()
}