AI-generated Key Takeaways
- 
          LineItemDealInfoDto is a data transfer object for the exchange deal information of a line item. 
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          It is part of the ForecastService and depends on LineItemSummary. 
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          The object contains the externalDealIdfield, which is a read-only long representing the finalized external deal ID assigned by Google.
Data transfer object for the exchange deal info of a line item.
- Namespace
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               https://www.google.com/apis/ads/publisher/v202505
| Field | |
|---|---|
| 
                            | 
                            The external deal ID shared between seller and buyer. This field is only present if the deal has been finalized. This attribute is read-only and is assigned by Google. |