VectorSearchVectorStore.add_texts assumes metadatas is a List[dict] when it should be List[List[dict]]

[raulescalantem]

Each text should be able to have a list of metadatas, however, current version only accepts List[dict]

[lkuligin]

@jzaldi

[jzaldi]

Hi @raulescalantem we follow the signature of langchain_core.vecorstores.VectorStore where add_texts is

 @abstractmethod
        def add_texts(
            self,
            texts: Iterable[str],
            metadatas: Optional[List[dict]] = None,
            **kwargs: Any,
        ) -> List[str]:
            """Run more texts through the embeddings and add to the vectorstore.

            Args:
                texts: Iterable of strings to add to the vectorstore.
                metadatas: Optional list of metadatas associated with the texts.
                kwargs: vectorstore specific parameters

            Returns:
                List of ids from adding the texts into the vectorstore.
            """

The metadata for each text is a dict.

For example:

• texts = ["This is the page 1", "This is the page 2"]
• metadatas = [{"page": 1, "source": "a_document.txt"}, {"page": 2, "source": "a_document.txt"}]

Am Im missing someething?