t :: %McProtocol.Handler.Stash{connection: %McProtocol.Acceptor.ProtocolState.Connection{control: term, reader: term, write: term, writer: term}, direction: McProtocol.Handler.protocol_direction, entity_id: non_neg_integer, identity: %{authed: boolean, name: String.t, uuid: McProtocol.UUID.t} | nil, mode: McProtocol.Handler.protocol_mode, play_mode: McProtocol.Handler.play_mode}