code: def download_file_part_run(download_context):
      
      destination_dir, file_url_data_dict, seek_amt, bytes_to_read = download_context.params
      project_file = ProjectFile(file_url_data_dict)
      local_path = project_file.get_local_path(destination_dir)
      retry_chunk_downloader = RetryChunkDownloader(project_file, local_path,
                                                    seek_amt, bytes_to_read,
                                                    download_context)
      retry_chunk_downloader.run()
      return 'ok'
docs: Function run by CreateProjectCommand to create the project.
      Runs in a background process.
      :param download_context: UploadContext: contains data service setup and project name to create.