List files for a competition, if it exists

            Parameters
            ==========
            competition: the name of the competition. If None, look to config
            competition_opt: an alternative competition option provided by cli
            csv_display: if True, print comma separated values
            quiet: suppress verbose output (default is False)

def competition_list_files_cli(self,
                                   competition,
                                   competition_opt=None,
                                   csv_display=False,
                                   quiet=False):
        """ List files for a competition, if it exists

            Parameters
            ==========
            competition: the name of the competition. If None, look to config
            competition_opt: an alternative competition option provided by cli
            csv_display: if True, print comma separated values
            quiet: suppress verbose output (default is False)
        """
        competition = competition or competition_opt
        if competition is None:
            competition = self.get_config_value(self.CONFIG_NAME_COMPETITION)
            if competition is not None and not quiet:
                print('Using competition: ' + competition)

        if competition is None:
            raise ValueError('No competition specified')
        else:
            files = self.competition_list_files(competition)
            fields = ['name', 'size', 'creationDate']
            if files:
                if csv_display:
                    self.print_csv(files, fields)
                else:
                    self.print_table(files, fields)
            else:
                print('No files found')