syntax_data: {"ast_node_type":"other","tokens":[{"end":38,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// captures, will be `(String,)`.
context_before:     /// while the `tupled_upvars_ty`, representing the by-move version of the same
context_after:     pub coroutine_captures_by_ref_ty: I::Ty,