AI-generated Key Takeaways
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          The document provides a comprehensive list of Ad Manager API services, including AdRuleService, AdjustmentService, and numerous others related to advertising and content management. 
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          It details the inheritance hierarchy for API errors, showing that CollectionSizeError is a type of ApiError. 
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          The CollectionSizeError specifically includes a 'reason' field with enumerations such as 'TOO_LARGE' and 'UNKNOWN', indicating the nature of the collection size issue. 
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          The namespace for these services and errors is https://www.google.com/apis/ads/publisher/v202502.
- Namespace
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               https://www.google.com/apis/ads/publisher/v202502
| Field | |
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| ApiError(inherited) | |
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| CollectionSizeError | |
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 Enumerations 
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