loader = S3FileLoader(
                self.bucket,
                obj.key,
                region_name=self.region_name,
                api_version=self.api_version,
                use_ssl=self.use_ssl,
                verify=self.verify,
                endpoint_url=self.endpoint_url,
                aws_access_key_id=self.aws_access_key_id,
                aws_secret_access_key=self.aws_secret_access_key,
                aws_session_token=self.aws_session_token,
                boto_config=self.boto_config,
            )
            docs.extend(loader.load())
        return docs