AI-generated Key Takeaways
- 
          EnvironmentType is an enum defining valid environments for ad display. 
- 
          Possible EnvironmentType values are BROWSER (regular web browser) and VIDEO_PLAYER. 
                  Service
               
               
            
                  Dependencies
               
               
                  ProposalLineItem
                  
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                  EnvironmentType
               Enum for the valid environments in which ads can be shown.
- Namespace
- 
               https://www.google.com/apis/ads/publisher/v202505
| Enumeration | Description | 
|---|---|
| BROWSER | A regular web browser. | 
| VIDEO_PLAYER | Video players. |