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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He is scheduled to meet Treasury Secretary Scott Bessent and Energy Secretary Chris Wright on Tuesday to discuss the issue.。业内人士推荐电影作为进阶阅读
朱同玉在接受界面新闻采访时介绍,当下,国内缺乏覆盖药品(含疫苗)及创新医疗器械产品全生命周期的严重不良事件补偿和风险共济制度。尤其在获批上市后的创新药械上,合法合规的补偿救济渠道不畅,被伤害人普遍补偿不足。这制约了创新药械的研发、注册审批及上市后的应用推广,也不利于创新医疗技术临床应用中的医患关系。