@type t() :: %Riichi.Scoring.Input{
  after_a_kan?: boolean() | nil,
  dealer?: boolean() | nil,
  decompositions: [Riichi.Decomposer.decomposed_hand()] | nil,
  dora_indicators: [Riichi.Tile.t()] | nil,
  event: Riichi.Scoring.winnable_event() | nil,
  first_chance?: boolean() | nil,
  last_turn?: boolean() | nil,
  riichi: (Riichi.Player.RiichiFlags.t() | nil) | nil,
  round_wind: Riichi.Round.wind() | nil,
  rules: Riichi.Rules.t() | nil,
  seat_wind: Riichi.Round.wind() | nil,
  ura_dora_indicators: [Riichi.Tile.t()] | nil
}