DeleteItem.
        [Preview API] Deletes the specified items in a container.
        :param long container_id: Container Id.
        :param str item_path: Path to delete.
        :param str scope: A guid representing the scope of the container. This is often the project id.

def delete_item(self, container_id, item_path, scope=None):
        """DeleteItem.
        [Preview API] Deletes the specified items in a container.
        :param long container_id: Container Id.
        :param str item_path: Path to delete.
        :param str scope: A guid representing the scope of the container. This is often the project id.
        """
        route_values = {}
        if container_id is not None:
            route_values['containerId'] = self._serialize.url('container_id', container_id, 'long')
        query_parameters = {}
        if item_path is not None:
            query_parameters['itemPath'] = self._serialize.query('item_path', item_path, 'str')
        if scope is not None:
            query_parameters['scope'] = self._serialize.query('scope', scope, 'str')
        self._send(http_method='DELETE',
                   location_id='e4f5c81e-e250-447b-9fef-bd48471bea5e',
                   version='5.0-preview.4',
                   route_values=route_values,
                   query_parameters=query_parameters)