old_contents: from ddsc.sdk.dukeds import DukeDS
  list_projects = DukeDS.list_projects
  create_project = DukeDS.create_project
  delete_project = DukeDS.delete_project
  list_files = DukeDS.list_files
  download_file = DukeDS.download_file
  upload_file = DukeDS.upload_file
  delete_file = DukeDS.delete_file
  can_deliver_to_user_with_email = DukeDS.can_deliver_to_user_with_email
  
  __all__ = ['list_projects', 'create_project', 'delete_project',
             'list_files', 'download_file', 'upload_file', 'delete_file',
             'can_deliver_to_user_with_email']
  
new_contents: from ddsc.sdk.dukeds import DukeDS
  list_projects = DukeDS.list_projects
  create_project = DukeDS.create_project
  delete_project = DukeDS.delete_project
  list_files = DukeDS.list_files
  download_file = DukeDS.download_file
  upload_file = DukeDS.upload_file
  delete_file = DukeDS.delete_file
  can_deliver_to_user_with_email = DukeDS.can_deliver_to_user_with_email
  can_deliver_to_user_with_username = DukeDS.can_deliver_to_user_with_username
  
  __all__ = ['list_projects', 'create_project', 'delete_project',
             'list_files', 'download_file', 'upload_file', 'delete_file',
             'can_deliver_to_user_with_email', 'can_deliver_to_user_with_username']
  
subject: add can_deliver_to_user_with_username to DukeDS init