Get verbose level by reading the arguments.

def _determine_verbose_level(self, args):
        """ Get verbose level by reading the arguments. """
        verbose_level = 0
        for arg in args:
            if arg == CLILogging.VERBOSE_FLAG:
                verbose_level += 1
            elif arg == CLILogging.DEBUG_FLAG:
                verbose_level += 2
        # Use max verbose level if too much verbosity specified.
        return min(verbose_level, len(self.console_log_configs) - 1)