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A source document sometimes lacks a field, but your schema marks it required. What happens, and what's the fix?

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Answer: A

A required field on possibly-absent data pressures the model to invent a value. Make it optional/nullable so it can correctly return null.

جو ڈیٹا شاید ہو ہی نہ، اسے لازمی خانہ بنانا ماڈل کو قدر گھڑنے پر مجبور کرتا ہے۔ اسے optional/nullable بنائیں تاکہ وہ درست طور پر null دے سکے۔

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