syntax_data: {"ast_node_type":"function","tokens":[{"end":87,"kind":"keyword","start":0,"text":"pub"}]}
source_snippet:     pub fn new(cx: I, parts: CoroutineClosureArgsParts<I>) -> CoroutineClosureArgs<I> {
context_before: impl<I: Interner> CoroutineClosureArgs<I> {
context_after:         CoroutineClosureArgs {