def get(self, doc_id, document_class=None):
        doc = self._index.get(doc_id)
        document_class = document_class or self.document_class
        if doc and document_class:
            return construct_document(document_class, doc)
        return doc
Get a document from this index by its ID. It'll be returned as an
dataset/ETHPy150Open potatolondon/search/search/indexes.py/Index.get