@type t() :: %HTTP.HTTP2.StreamState{
  end_stream_received?: term(),
  end_stream_sent?: term(),
  expected_content_length: term(),
  headers?: term(),
  id: term(),
  metadata: term(),
  purpose: term(),
  receive_window: term(),
  received_body_bytes: term(),
  request_headers_sent?: term(),
  request_method: term(),
  request_ref: term(),
  response_phase: term(),
  response_status: term(),
  send_window: term(),
  state: term(),
  unacknowledged: term()
}