AI-generated Key Takeaways
- 
          A single operation is performed on an experiment arm. 
- 
          The update_maskdetermines which fields are modified in an update operation.
- 
          The operationfield can be one ofcreate,update, orremove.
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          createoperation creates an ExperimentArm resource.
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          updateandremoveoperations require the experiment arm to have a valid resource name.
A single operation on an experiment arm.
| Fields | |
|---|---|
| 
 | FieldMask that determines which resource fields are modified in an update. | 
| Union field 
 | |
| 
 | Create operation | 
| 
 | Update operation: The experiment arm is expected to have a valid resource name. | 
| 
 | 
 Remove operation: The experiment arm is expected to have a valid resource name, in this format: 
 |