langchain/vectorstores/supabase.py/SupabaseVectorStore/add_texts
class SupabaseVectorStore:    def add_texts(
        self,
        texts: Iterable[str],
        metadatas: Optional[List[dict[Any, Any]]] = None,
        **kwargs: Any,
    ) -> List[str]:
        docs = self._texts_to_documents(texts, metadatas)

        vectors = self._embedding.embed_documents(list(texts))
        return self.add_vectors(vectors, docs)