@type t() :: %Muta.Config{
  acceptances: [Muta.Acceptance.t()],
  baseline_timeout_ms: pos_integer(),
  lines: %{required(Path.t()) => MapSet.t(pos_integer())},
  mutators: [module()],
  sources: [Muta.Source.t()],
  test_files: [Path.t()],
  test_helper: Path.t(),
  workers: pos_integer()
}