{"ast_node_type":"function","tokens":[{"end":64,"kind":"keyword","start":0,"text":"fn"}]}
            fn visit_expr(&mut self, e: &'hir hir::Expr<'hir>) {
        impl<'hir> Visitor<'hir> for ExpressionFinder<'hir> {
                if e.span.contains(self.capture_span)