def SetTimelineOwner(self, username):
    """Sets the username of the user that should own the timeline.

    Args:
      username (str): username.
    """
    self._timeline_owner = username
    logger.info('Owner of the timeline: {0!s}'.format(self._timeline_owner))
Sets the username of the user that should own the timeline.

    Args:
      username (str): username.