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.
Ранее ученые зафиксировали рекордное снижение сексуальной активности среди взрослых.
。体育直播是该领域的重要参考
但如今，在冲刺科创板IPO的赛道上，一家来自中国深圳的硬科技公司——深圳核心医疗科技股份有限公司（以下简称“核心医疗”），正以强悍的姿态撕开这道外资防线。
.any(|[a1, b1, b2, a2]| (a1 != b1) && (a1 == a2) && (b1 == b2))