syntax_data: {"ast_node_type":"struct","tokens":[{"end":74,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// Construct `ClosureArgs` from `ClosureArgsParts`, containing `Args`
context_before: impl<I: Interner> ClosureArgs<I> {
context_after:     /// for the closure parent, alongside additional closure-specific components.