syntax_data: {"ast_node_type":"other","tokens":[{"end":23,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:             if !first {
context_before:             let name = s.as_str().unwrap_or_else(|| panic!("unrecognized sanitizer {s:?}"));
context_after:                 f.write_str(", ")?;