if self.document_ids:
                _document_details = [
                    d for d in _document_details if d["id"] in self.document_ids
                ]
            _project_details = self._project_details_for_docset_id(self.docset_id)
            combined_project_metadata = {}
            if _project_details:
                # if there are any projects for this docset, load project metadata
                for project in _project_details:
                    metadata = self._metadata_for_project(project)
                    combined_project_metadata.update(metadata)
            for doc in _document_details:
                doc_metadata = combined_project_metadata.get(doc["id"])
                chunks += self._load_chunks_for_document(
                    self.docset_id, doc, doc_metadata
                )
        elif self.file_paths:
            # local mode (for integration testing, or pre-downloaded XML)
            for path in self.file_paths:
                path = Path(path)
                with open(path, "rb") as file:
                    chunks += self._parse_dgml(
                        {
                            DOCUMENT_ID_KEY: path.name,
                            DOCUMENT_NAME_KEY: path.name,
                        },
                        file.read(),
                    )
        return chunks