1. https://github.com/django-haystack/django-haystack/blob/master/haystack/backends/elasticsearch_backend.py
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                self.conn.indices.create(
                    index=self.index_name, body=self.DEFAULT_SETTINGS, ignore=400
                )
                self.conn.indices.put_mapping(
                    index=self.index_name, doc_type="modelresult", body=current_mapping
                )