syntax_data: {"ast_node_type":"other","tokens":[{"end":49,"kind":"keyword","start":0,"text":"#[instrument(skip(self,"}]}
source_snippet:     #[instrument(skip(self, f), level = "debug")]
context_before:     /// to build its contents, popping the scope afterwards.
context_after:     pub(crate) fn in_scope<F, R>(