def embedding_strs(self) -> List[str]:
        """Use custom embedding strs if specified, otherwise use query str."""
        if self.custom_embedding_strs is None:
            if len(self.query_str) == 0:
                return []
            return [self.query_str]
        else:
            return self.custom_embedding_strs
Use custom embedding strs if specified, otherwise use query str.
llama-index-core/llama_index/core/schema.py