General workloads, lowest overhead
The setter deduplicates by equality: if the new value == the current value, no notification fires. This works well for enums, strings, and ints, but mutating a mutable object in place and reassigning the same reference won't trigger consumers (because obj == obj is trivially True). Stick to immutable values and this isn't a concern.
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iCAR 品牌自成立伊始，便坚定地走特色化、差异化路线，致力于打造与众不同的汽车。
production is a unified IT and data model across the entire production
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