AI-generated Key Takeaways
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Describes a single update operation on an ad.
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update_maskis used to specify which fields are modified. - 
          
policy_validation_parameterconfigures how policies are validated. - 
          
The
operationfield, specificallyupdate, is used to update an existing ad by its resource name. 
A single update operation on an ad.
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                   FieldMask that determines which resource fields are modified in an update.  | 
              
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                   Configuration for how policies are validated.  | 
              
Union field 
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                   Update operation: The ad is expected to have a valid resource name in this format: 
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