How to use the prom2teams.app.exceptions.MissingConnectorConfigKeyException function in prom2teams

config_provided = _config_provided(command_line_args.configpath)
            _update_application_configuration(application, config_provided)
        if command_line_args.loglevel:
            application.config['LOG_LEVEL'] = command_line_args.loglevel
        if command_line_args.logfilepath:
            application.config['LOG_FILE_PATH'] = command_line_args.logfilepath
        if command_line_args.templatepath:
            application.config['TEMPLATE_PATH'] = command_line_args.templatepath
        if command_line_args.groupalertsby:
            application.config['GROUP_ALERTS_BY'] = command_line_args.groupalertsby
        if command_line_args.enablemetrics or os.environ.get('PROM2TEAMS_PROMETHEUS_METRICS', False):
            from prometheus_flask_exporter import PrometheusMetrics
            metrics = PrometheusMetrics(application)

        if 'MICROSOFT_TEAMS' not in application.config:
            raise MissingConnectorConfigKeyException('missing connector key in config')

    except MissingConnectorConfigKeyException:
        sys.exit('No Microsoft Teams connector available')

def _config_provided(filepath):
    config = configparser.ConfigParser()
    try:
        with open(filepath) as f_prov:
            config.read_file(f_prov)

        if not config.options('Microsoft Teams'):
            raise MissingConnectorConfigKeyException('missing connector key in provided config')

    except configparser.NoSectionError:
        raise MissingConnectorConfigKeyException('missing required Microsoft Teams / '
                                                 'connector key in provided config')
    return config

def _config_provided(filepath):
    config = configparser.ConfigParser()
    try:
        with open(filepath) as f_prov:
            config.read_file(f_prov)

        if not config.options('Microsoft Teams'):
            raise MissingConnectorConfigKeyException('missing connector key in provided config')

    except configparser.NoSectionError:
        raise MissingConnectorConfigKeyException('missing required Microsoft Teams / '
                                                 'connector key in provided config')
    return config