useimplicit_clone::unsync::IString;usestd::borrow::Cow;/// Turn an `IString` (or `AttrValue`) into a `Cow<'static, str>`
pubfnattr_value_to_static_cow(value:&IString)->Cow<'static, str>{match value {IString::Static(s)=>(*s).into(),IString::Rc(s)=>(*s).to_string().into(),}}