class Selenium::WebDriver::WebSocketConnection

def send_cmd(**payload)
  id = next_id
  data = payload.merge(id: id)
  WebDriver.logger.debug "WebSocket -> #{data}"[...MAX_LOG_MESSAGE_SIZE], id: :bidi
  data = JSON.generate(data)
  out_frame = WebSocket::Frame::Outgoing::Client.new(version: ws.version, data: data, type: 'text')
  socket.write(out_frame.to_s)
  wait.until { messages.delete(id) }
end