langchain/document_loaders/unstructured.py/UnstructuredAPIFileLoader/_get_elements
class UnstructuredAPIFileLoader:    def _get_elements(self) -> List:
        return get_elements_from_api(
            file_path=self.file_path,
            api_key=self.api_key,
            api_url=self.url,
            **self.unstructured_kwargs,
        )