Registers the end of a processing operation.

        :param warning: Emit warning message.
        :type warning: int
        :return: Method success.
        :rtype: bool

def stop_processing(self, warning=True):
        """
        Registers the end of a processing operation.

        :param warning: Emit warning message.
        :type warning: int
        :return: Method success.
        :rtype: bool
        """

        if not self.__is_processing:
            warning and LOGGER.warning(
                "!> {0} | Engine is not processing, 'stop_processing' request has been ignored!".format(
                    self.__class__.__name__))
            return False

        LOGGER.debug("> Stopping processing operation!")

        self.__is_processing = False
        self.Application_Progress_Status_processing.Processing_label.setText(QString())
        self.Application_Progress_Status_processing.Processing_progressBar.setRange(0, 100)
        self.Application_Progress_Status_processing.Processing_progressBar.setValue(0)
        self.Application_Progress_Status_processing.hide()
        return True