syntax_data: {"ast_node_type":"other","tokens":[{"end":46,"kind":"keyword","start":0,"text":"#[instrument(skip(self),"}]}
source_snippet:     #[instrument(skip(self), level = "trace")]
context_after:     fn consts(&mut self, a: I::Const, b: I::Const) -> RelateResult<I, I::Const> {