@type t() :: %Exstream{
  conn: %Plug.Conn{
    adapter: term(),
    assigns: term(),
    body_params: term(),
    cookies: term(),
    halted: term(),
    host: term(),
    method: term(),
    owner: term(),
    params: term(),
    path_info: term(),
    path_params: term(),
    port: term(),
    private: term(),
    query_params: term(),
    query_string: term(),
    remote_ip: term(),
    req_cookies: term(),
    req_headers: term(),
    request_path: term(),
    resp_body: term(),
    resp_cookies: term(),
    resp_headers: term(),
    scheme: term(),
    script_name: term(),
    secret_key_base: term(),
    state: term(),
    status: term()
  },
  end: String.t(),
  path: String.t(),
  start: String.t()
}