def last_verified_by_stub(obj):
  """Returns a stub of last_verified_by.

  Args:
    obj: An instance of model with last_verified_by.
  Returns:
    JSON with information for last_verified_by.
  """
  if not obj.last_verified_by:
    return None
  return {
      'type': 'Person',
      'id': obj.last_verified_by.id,
      'context_id': obj.context_id,
      'href': '/api/people/%s' % obj.last_verified_by.id,
      'email': obj.last_verified_by.email,
  }