@type t() :: %GenAI.Session.State{
  artifacts: map(),
  data_generators: map(),
  directive_position: non_neg_integer(),
  directives: list(),
  model: term(),
  model_settings: map(),
  monitors: map(),
  options: map(),
  provider_settings: map(),
  safety_settings: map(),
  settings: map(),
  stack: map(),
  thread: list(),
  thread_messages: map(),
  tools: map(),
  vsn: float()
}