AI-generated Key Takeaways
- 
          The page lists various services including AdRuleService, AdjustmentService, and StreamActivityMonitorService. 
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          RequiredCollectionError inherits from ApiError, along with several other error types such as AuthenticationError and PermissionError. 
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          The RequiredCollectionError specifically includes a reasonfield, which is an enumeration with values likeREQUIRED,TOO_LARGE,TOO_SMALL, andUNKNOWN.
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          The namespace for these services and errors is https://www.google.com/apis/ads/publisher/v202508.
- Namespace
- 
               https://www.google.com/apis/ads/publisher/v202508
| Field | |
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| ApiError(inherited) | |
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| RequiredCollectionError | |
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 Enumerations 
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