Delete a series according to the given criteria.

        **Note:** for the key argument, the filter will return the *union* of
        those values.  For the tag and attr arguments, the filter will return
        the *intersection* of those values.

        :param keys: filter by one or more series keys
        :type keys: list or string
        :param tags: filter by one or more tags
        :type tags: list or string
        :param dict attrs: filter by one or more key-value attributes
        :param bool allow_truncation: whether to allow full deletion of a
                                      database. Default is False.
        :rtype: :class:`tempodb.response.Response` object

def delete_series(self, keys=None, tags=None, attrs=None,
                      allow_truncation=False):
        """Delete a series according to the given criteria.

        **Note:** for the key argument, the filter will return the *union* of
        those values.  For the tag and attr arguments, the filter will return
        the *intersection* of those values.

        :param keys: filter by one or more series keys
        :type keys: list or string
        :param tags: filter by one or more tags
        :type tags: list or string
        :param dict attrs: filter by one or more key-value attributes
        :param bool allow_truncation: whether to allow full deletion of a
                                      database. Default is False.
        :rtype: :class:`tempodb.response.Response` object"""

        params = {
            'key': keys,
            'tag': tags,
            'attr': attrs,
            'allow_truncation': str(allow_truncation).lower()
        }
        url_args = endpoint.make_url_args(params)
        url = '?'.join([endpoint.SERIES_ENDPOINT, url_args])
        resp = self.session.delete(url)
        return resp