def get_all(self, collection: str = DEFAULT_COLLECTION) -> Dict[str, dict]:
        """
        Get all values from the Firestore collection.

        Args:
            collection (str): collection name

        """
        collection_id = self.firestore_collection(collection)
        docs = self._db.collection(collection_id).list_documents()
        output = {}
        for doc in docs:
            key = doc.id
            val = self.replace_field_name_get(doc.get().to_dict())
            output[key] = val
        return output

        Get all values from the Firestore collection.

        Args:
            collection (str): collection name

        
llama-index-integrations/storage/kvstore/llama-index-storage-kvstore-firestore/llama_index/storage/kvstore/firestore/base.py