AI-generated Key Takeaways
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          This page describes a single operation for managing ad parameters, which can be creating, updating, or removing. 
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          The update_maskfield is used in an update operation to specify which fields of the ad parameter resource are being modified.
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          The operationfield is a union field that indicates the type of mutate operation being performed (create, update, or remove).
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          For a create operation, no resource name is needed, while update operations require a valid resource name and remove operations require a specific resource name format. 
A single operation (create, update, remove) on ad parameter.
| Fields | |
|---|---|
| 
 | FieldMask that determines which resource fields are modified in an update. | 
| Union field 
 | |
| 
 | Create operation: No resource name is expected for the new ad parameter. | 
| 
 | Update operation: The ad parameter is expected to have a valid resource name. | 
| 
 | 
 Remove operation: A resource name for the ad parameter to remove is expected in this format: 
 |