AI-generated Key Takeaways
- 
          GrpProvider represents available GRP providers that a line item will have its target demographic measured by. 
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          GrpProvider is part of the ForecastService, LineItemService, and ProposalLineItemService. 
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          GrpProvider has dependencies on GrpSettings. 
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          The GrpProvider enumeration includes UNKNOWN and NIELSEN values. 
Represents available GRP providers that a line item will have its target demographic measured by.
- Namespace
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               https://www.google.com/apis/ads/publisher/v202502
| Enumeration | Description | 
|---|---|
| UNKNOWN | The value returned if the actual value is not exposed by the requested API version. | 
| NIELSEN |