AI-generated Key Takeaways
- 
          ChangeHistoryValue is an unused class providing reference documentation for entityType and operation values. 
- 
          The entityType field lists various types of entities like COMPANY, CREATIVE, LINE_ITEM, and USER. 
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          The operation field specifies actions such as CREATE, UPDATE, and DELETE. 
This class is unused. It exists only to provide reference documentation of the possible values for type and ChangeHistoryOperation.
- Namespace
- 
               https://www.google.com/apis/ads/publisher/v202505
| Field | |
|---|---|
| Value(inherited) | |
| ObjectValue(inherited) | |
| ChangeHistoryValue | |
| 
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