code: def BuildAdGroupCriterionOperations(adgroup_id):
    
    criterion_operations = [
        {
            # You must specify the xsi_type of operations run by the
            # BatchJobService.
            'xsi_type': 'AdGroupCriterionOperation',
            'operand': {
                'xsi_type': 'BiddableAdGroupCriterion',
                'adGroupId': adgroup_id,
                'criterion': {
                    'xsi_type': 'Keyword',
                    # Make 10% of keywords invalid to demonstrate error handling.
                    'text': 'mars%s%s' % (uuid.uuid4(),
                                          '!!!' if i % 10 == 0 else ''),
                    'matchType': 'BROAD'
                }
            },
            'operator': 'ADD'
        }
        for i in range(KEYWORD_COUNT)]
  
    return criterion_operations
docs: Builds the operations adding a Keyword Criterion to each AdGroup.
  
    Args:
      adgroup_id: an integer identifying an AdGroup to associate the keywords
        with.
  
    Returns:
      a list containing the operations that will create a new Keyword Criterion
      associated with each provided AdGroup.