t() :: %Flux.Websocket.Conn{
  host: binary(),
  opts: keyword(),
  parent: pid(),
  peer: {binary(), integer()},
  port: integer(),
  ref: identifier(),
  remote_ip: binary(),
  socket: pid(),
  transport: atom(),
  uri: iodata(),
  ws_accept: iodata(),
  ws_protocol: iodata()
}