token = token or get_from_env("token", "TRELLO_TOKEN")
        client = TrelloClient(api_key=api_key, token=token)
        return cls(client, board_name, **kwargs)
[docs]    def load(self) -> List[Document]:
        """Loads all cards from the specified Trello board.
        You can filter the cards, metadata and text included by using the optional
            parameters.
         Returns:
            A list of documents, one for each card in the board.
        """
        try:
            from bs4 import BeautifulSoup  # noqa: F401
        except ImportError as ex:
            raise ImportError(
                "`beautifulsoup4` package not found, please run"
                " `pip install beautifulsoup4`"
            ) from ex
        board = self._get_board()
        # Create a dictionary with the list IDs as keys and the list names as values
        list_dict = {list_item.id: list_item.name for list_item in board.list_lists()}
        # Get Cards on the board
        cards = board.get_cards(card_filter=self.card_filter)
        return [self._card_to_doc(card, list_dict) for card in cards]
    def _get_board(self) -> Board:
        # Find the first board with a matching name
        board = next(
            (b for b in self.client.list_boards() if b.name == self.board_name), None
        )
        if not board:
            raise ValueError(f"Board `{self.board_name}` not found.")
        return board
    def _card_to_doc(self, card: Card, list_dict: dict) -> Document:
        from bs4 import BeautifulSoup  # type: ignore
        text_content = ""
        if self.include_card_name:
            text_content = card.name + "\n"