AI-generated Key Takeaways
- 
          This operation allows for single create, remove, or update actions on a seasonality adjustment. 
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          The update_maskfield is a FieldMask used to determine which resource fields are modified during an update.
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          The operationfield, a union field, specifies the type of mutate operation (create, update, or remove) to perform.
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          A create operation does not require a resource name, an update operation expects a valid resource name, and a remove operation requires a resource name in a specific format. 
A single operation (create, remove, update) on a seasonality adjustment.
| Fields | |
|---|---|
| 
 | FieldMask that determines which resource fields are modified in an update. | 
| Union field 
 | |
| 
 | Create operation: No resource name is expected for the new seasonality adjustment. | 
| 
 | Update operation: The seasonality adjustment is expected to have a valid resource name. | 
| 
 | 
 Remove operation: A resource name for the removed seasonality adjustment is expected, in this format: 
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