A single operation (update, remove) on customer user access.
| Fields | |
|---|---|
| 
 | FieldMask that determines which resource fields are modified in an update. | 
| Union field 
 | |
| 
 | Update operation: The customer user access is expected to have a valid resource name. | 
| 
 | 
 Remove operation: A resource name for the removed access is expected, in this format: 
 |