def _map_access_string(access_string):
  """Map an access string to a value Blogger will understand.

  In this case, Blogger only cares about "is draft" so 'public' gets mapped to
  False, everything else to True.

  Returns:
    Boolean indicating True (is a draft) or False (is not a draft).
  """
  if not access_string:
    return False
  if access_string == 'public':
    return False
  return True