code: def send_message(self, message, icon_path=None):
          
          icon_encoded_string = ''
          icon_extension = ''
  
          if icon_path is not None:
              icon_extension = os.path.splitext(icon_path)[1][1:]
              with open(icon_path, 'rb') as icon_file:
                  icon_encoded_string = base64.b64encode(icon_file.read()).decode('ascii')
  
          self.request(EP_SHOW_MESSAGE, {
              'message': message,
              'iconData': icon_encoded_string,
              'iconExtension': icon_extension
          })
docs: Show a floating message.