def fetch(self, url, body=None, headers=None):
        raise NotImplementedError
Sets up a detail route for ``more-like-this`` results.
dataset/ETHPy150Open necaris/python3-openid/openid/fetchers.py/HTTPFetcher.fetch--crossover with--dataset/ETHPy150Open inonit/drf-haystack/drf_haystack/viewsets.py/HaystackViewSet.more_like_this