A single operation (create, update) on a custom interest.
| Fields | |
|---|---|
 | 
                
                  
                   FieldMask that determines which resource fields are modified in an update.  | 
              
Union field 
 | 
              |
 | 
                
                  
                   Create operation: No resource name is expected for the new custom interest.  | 
              
 | 
                
                  
                   Update operation: The custom interest is expected to have a valid resource name.  |