AI-generated Key Takeaways
- 
          ForecastService and ProposalLineItemService are services related to ProposalLineItems. 
- 
          BuyerPermissionType describes the type of buyer permission for a line item. 
- 
          BuyerPermissionType has three enumeration values: NEGOTIATOR_ONLY, BIDDER, and UNKNOWN. 
                  Service
               
               
                  ForecastService
                  ProposalLineItemService
               
            
                  Dependencies
               
               
                  ProposalLineItem
                  
            ▼
                  BuyerPermissionType
               Describes the buyer permission type.
- Namespace
- 
               https://www.google.com/apis/ads/publisher/v202505
| Enumeration | Description | 
|---|---|
| NEGOTIATOR_ONLY | Only the buyer listed on the line item can transact. | 
| BIDDER | All buyers under the listed buyer's bidder can transact on the line item. | 
| UNKNOWN | The value returned if the actual value is not exposed by the requested API version. |