}
</pre>

<p>
Implementation restriction:
A union (with more than one term) cannot contain the
<a href="#Predeclared_identifiers">predeclared identifier</a> <code>comparable</code>
or interfaces that specify methods, or embed <code>comparable</code> or interfaces
that specify methods.
</p>

<p>
Interfaces that are not <a href="#Basic_interfaces">basic</a> may only be used as type

Indian/Chagos Indian/Christmas Indian/Cocos Indian/Comoro Indian/Kerguelen Indian/Mahe Indian/Maldives Indian/Mauritius Indian/Mayotte Indian/Reunion Iran Israel Jamaica Japan Kwajalein Libya MET MST MST7MDT Mexico/BajaNorte Mexico/BajaSur Mexico/General NZ NZ-CHAT Navajo PRC PST8PDT Pacific/Apia Pacific/Auckland Pacific/Bougainville Pacific/Chatham Pacific/Chuuk Pacific/Easter Pacific/Efate Pacific/Enderbury Pacific/Fakaofo Pacific/Fiji Pacific/Funafuti Pacific/Galapagos Pacific/Gambier Pacific/Guadalcanal Pacific/Guam...

pkg syscall (netbsd-arm64-cgo), type IfAnnounceMsghdr struct, Type uint8
pkg syscall (netbsd-arm64-cgo), type IfAnnounceMsghdr struct, Version uint8
pkg syscall (netbsd-arm64-cgo), type IfAnnounceMsghdr struct, What uint16
pkg syscall (netbsd-arm64-cgo), type IfData struct
pkg syscall (netbsd-arm64-cgo), type IfData struct, Addrlen uint8
pkg syscall (netbsd-arm64-cgo), type IfData struct, Baudrate uint64