AI-generated Key Takeaways
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The content lists various Ad Manager API services including AdRuleService, AdjustmentService, and AdsTxtService, among many others.
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It outlines the inheritance structure for errors, with ApiError as the base and FeatureError being a specific type of error.
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The
FeatureErrorhas areasonfield which is an enumeration that can beMISSING_FEATUREorUNKNOWN. 
- Namespace
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https://www.google.com/apis/ads/publisher/v202508 
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                           ApiError (inherited)
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                           FeatureError
                        
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 Enumerations 
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