def update_file(self, file_id, upload_id):
        """
        Send PUT request to /files/{file_id} to update the file contents to upload_id and sets a label.
        :param file_id: str uuid of file
        :param upload_id: str uuid of the upload where all the file chunks where uploaded
        :param label: str short display label for the file
        :return: requests.Response containing the successful result
        """
        put_data = {
            "upload[id]": upload_id,
        }
        return self._put("/files/" + file_id, put_data, content_type=ContentType.form)