AI-generated Key Takeaways
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          Size represents the dimensions of an AdUnit, LineItem or Creative. 
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          For certain types of sizes like interstitial or native, the Size must be 1x1. 
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          The Size object includes fields for width, height, and whether it represents an aspect ratio. 
Represents the dimensions of an AdUnit, LineItem or Creative.
For interstitial size (out-of-page), native, ignored and fluid size, Size must be 1x1.
- Namespace
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               https://www.google.com/apis/ads/publisher/v202508
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                            Whether this size represents an aspect ratio. |