langchain/document_loaders/evernote.py/EverNoteLoader/_parse_content
class EverNoteLoader:    def _parse_content(content: str) -> str:
        try:
            import html2text

            return html2text.html2text(content).strip()
        except ImportError as e:
            logging.error(
                "Could not import `html2text`. Although it is not a required package "
                "to use Langchain, using the EverNote loader requires `html2text`. "
                "Please install `html2text` via `pip install html2text` and try again."
            )
            raise e