@type t() :: %AntigravityCliSdk.Types.ResultEvent{
  duration_ms: non_neg_integer() | nil,
  extra: map(),
  metadata: map(),
  object: term(),
  output: term(),
  provider_session_id: String.t() | nil,
  raw: map(),
  result: String.t() | nil,
  status: term(),
  stop_reason: term(),
  type: :result,
  usage: map()
}