syntax_data: {"ast_node_type":"other","tokens":[{"end":46,"kind":"keyword","start":0,"text":")"}]}
source_snippet:     ) -> IterInstantiatedCopied<'s, I, Iter> {
context_before:         args: &'s [I::GenericArg],
context_after:         IterInstantiatedCopied { it: self.value.into_iter(), cx, args }