GetItems.
        [Preview API]
        :param long container_id:
        :param str scope:
        :param str item_path:
        :param bool metadata:
        :param str format:
        :param str download_file_name:
        :param bool include_download_tickets:
        :param bool is_shallow:
        :rtype: [FileContainerItem]

def get_items(self, container_id, scope=None, item_path=None, metadata=None, format=None, download_file_name=None, include_download_tickets=None, is_shallow=None):
        """GetItems.
        [Preview API]
        :param long container_id:
        :param str scope:
        :param str item_path:
        :param bool metadata:
        :param str format:
        :param str download_file_name:
        :param bool include_download_tickets:
        :param bool is_shallow:
        :rtype: [FileContainerItem]
        """
        route_values = {}
        if container_id is not None:
            route_values['containerId'] = self._serialize.url('container_id', container_id, 'long')
        query_parameters = {}
        if scope is not None:
            query_parameters['scope'] = self._serialize.query('scope', scope, 'str')
        if item_path is not None:
            query_parameters['itemPath'] = self._serialize.query('item_path', item_path, 'str')
        if metadata is not None:
            query_parameters['metadata'] = self._serialize.query('metadata', metadata, 'bool')
        if format is not None:
            query_parameters['$format'] = self._serialize.query('format', format, 'str')
        if download_file_name is not None:
            query_parameters['downloadFileName'] = self._serialize.query('download_file_name', download_file_name, 'str')
        if include_download_tickets is not None:
            query_parameters['includeDownloadTickets'] = self._serialize.query('include_download_tickets', include_download_tickets, 'bool')
        if is_shallow is not None:
            query_parameters['isShallow'] = self._serialize.query('is_shallow', is_shallow, 'bool')
        response = self._send(http_method='GET',
                              location_id='e4f5c81e-e250-447b-9fef-bd48471bea5e',
                              version='5.0-preview.4',
                              route_values=route_values,
                              query_parameters=query_parameters)
        return self._deserialize('[FileContainerItem]', self._unwrap_collection(response))