langchain/document_loaders/web_base.py/WebBaseLoader/scrape
class WebBaseLoader:    def scrape(self, parser: Union[str, None] = None) -> Any:
        """Scrape data from webpage and return it in BeautifulSoup format."""

        if parser is None:
            parser = self.default_parser

        return self._scrape(self.web_path, parser)