nad_receiver/__init__.py
def main_volume(self, operator, value=None):
        """
        Execute Main.Volume.

        Returns int
        """
        try:
            res = int(self.exec_command('main', 'volume', operator, value))
            return res

        except (ValueError, TypeError):
            pass

        return None
def main_volume(self, operator, value=None):
        """
        Execute Main.Volume.

        Returns int
        """
        try:
            res = int(self.exec_command('main', 'volume', operator, value))
            return res

        except (ValueError, TypeError):
            pass

        return None
Execute Main.Volume.

        Returns int