Optional arguments are supported as well. In that case an option can be used
They are immutable and mandatory. Of course, Meta and other manufacturers also have other products that come with Bluetooth and therefore their ID, e.g. VR Headsets. Therefore, using these company ID codes for the app's scanning process is prone to false positives. But if you can't see someone wearing an Occulus Rift around you and there are no buildings where they could hide, chances are good that it's smart glasses instead.
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Across all three versions, there’s a mockToString or spoof helper. But the V3 implementation is subtly more robust than the V2 one, and it’s worth examining why.
林方庆是林文庆之讹，林文庆（Lim Boon Keng）译The Li Sao: An Elegy on Encountering Sorrows出版于1929年，H. A. Giles, R. Tagore (泰戈尔), Chen Huan-chang (陈焕章)三人为序——周汝昌那篇英文即几次三番嗤鄙林译，还引用了Giles的序言。就在前些天，周伦玲还写道：“打开此书[The Li Sao]后，先读到的就是钱先生的英文序言。”（《寻找钱锺书先生的〈落花辞〉》，《文汇报》2025年11月9日）。想当然耳。