AdGroupCriterionLabelOperation

A single operation (create, remove) on an ad group criterion label.

Fields
Union field operation operation. The mutate operation. operation can be only one of the following:
create	AdGroupCriterionLabel Create operation: No resource name is expected for the new ad group label.
remove	string Remove operation: A resource name for the ad group criterion label being removed, in this format: customers/{customer_id}/adGroupCriterionLabels/{ad_group_id}~{criterion_id}~{label_id}