AI-generated Key Takeaways
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A single operation on an experiment arm allows for creation, update, or removal.
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The
update_maskfield is used to determine which resource fields are modified during an update operation. - 
          
The
operationfield, a union field, specifies the type of mutate operation, which can becreate,update, orremove. - 
          
For
updateandremoveoperations, the experiment arm is expected to have a valid resource name. 
A single operation on an experiment arm.
| Fields | |
|---|---|
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                   FieldMask that determines which resource fields are modified in an update.  | 
              
Union field 
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                   Create operation  | 
              
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                   Update operation: The experiment arm is expected to have a valid resource name.  | 
              
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 Remove operation: The experiment arm is expected to have a valid resource name, in this format: 
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