How to use the pyalpm.LOG_FUNCTION function in pyalpm

line = line.rstrip()

        # Log everything to cnchi-alpm.log
        self.logger.debug(line)

        logmask = pyalpm.LOG_ERROR | pyalpm.LOG_WARNING

        if not level & logmask:
            # Only log errors and warnings
            return

        if level & pyalpm.LOG_ERROR:
            logging.error(line)
        elif level & pyalpm.LOG_WARNING:
            logging.warning(line)
        elif level & pyalpm.LOG_DEBUG or level & pyalpm.LOG_FUNCTION:
            logging.debug(line)

def cb_log(level, line):
	if not (level & _logmask):
		return
	if level & pyalpm.LOG_ERROR:
		line = "ERROR: " + line
	elif level & pyalpm.LOG_WARNING:
		line = "WARNING: " + line
	elif level & pyalpm.LOG_DEBUG:
		line = "DEBUG: " + line
	elif level & pyalpm.LOG_FUNCTION:
		line = "FUNC: " + line
	sys.stderr.write(line)

return
	if level & pyalpm.LOG_ERROR:
		ErrorDialog.format_secondary_text("ERROR: "+line)
		response = ErrorDialog.run()
		if response:
			ErrorDialog.hide()
			#t.release()
	elif level & pyalpm.LOG_WARNING:
		WarningDialog.format_secondary_text("WARNING: "+line)
		response = WarningDialog.run()
		if response:
			WarningDialog.hide()
	elif level & pyalpm.LOG_DEBUG:
		line = "DEBUG: " + line
		print(line)
	elif level & pyalpm.LOG_FUNCTION:
		line = "FUNC: " + line
		print(line)
	#sys.stderr.write(line)