AI-generated Key Takeaways
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RecommendationSubscriptionService.MutateRecommendationSubscriptionis a single operation used to create or update a recommendation subscription. - 
          
The
update_maskfield is optional and used to specify which fields are modified during an update. - 
          
The
operationfield is required and specifies whether to create or update a recommendation subscription. - 
          
The
createoperation does not require a resource name, while theupdateoperation requires a valid resource name. 
A single operation (create, update) on a recommendation subscription. [RecommendationSubscriptionService.MutateRecommendationSubscription]
| Fields | |
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                   Optional. FieldMask that determines which resource fields are modified in an update.  | 
              
Union field 
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                   Create operation: No resource name is expected for the new subscription.  | 
              
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                   Update operation: The subscription is expected to have a valid resource name.  |