@spec category(String.t() | nil) :: String.t()

@spec expected_version(atom(), String.t()) :: Result.t(term(), integer())

@spec fetch(
  conn,
  String.t(),
  m,
  read:
    (conn, String.t(), list() ->
       Result.t(reason, [EventStore.RecordedEvent.t()])),
  project: ([EventStore.RecordedEvent.t()], m -> projection)
) :: Result.t(reason, projection)
when conn: module(), m: module(), reason: term(), projection: any()

@spec project([EventStore.RecordedEvent.t()], module()) :: any()

@spec stream_name_to_id(String.t()) :: String.t() | nil

@spec to_result(:ok | {:error, err}, value) :: Result.t(err, value)
when err: any(), value: any()