AdGroupCustomizerOperation

A single operation (create, remove) on a customizer attribute.

Fields
Union field operation operation. The mutate operation. operation can be only one of the following:
create	AdGroupCustomizer Create operation: No resource name is expected for the new ad group customizer
remove	string Remove operation: A resource name for the removed ad group customizer is expected, in this format: customers/{customer_id}/adGroupCustomizers/{ad_group_id}~{customizer_attribute_id}