AI-generated Key Takeaways
- 
          Describes a single operation on a label, which can be create, remove, or update. 
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          The operationfield is a union that defines the type of mutate operation performed on the label.
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          For an update operation, a update_maskis used to specify which fields are modified.
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          Create operations do not expect a resource name, while update operations require a valid resource name and remove operations require a resource name in a specific format. 
A single operation (create, remove, update) on a label.
| Fields | |
|---|---|
| 
 | FieldMask that determines which resource fields are modified in an update. | 
| Union field 
 | |
| 
 | Create operation: No resource name is expected for the new label. | 
| 
 | Update operation: The label is expected to have a valid resource name. | 
| 
 | 
 Remove operation: A resource name for the label being removed, in this format: 
 |