{"ast_node_type":"other","tokens":[{"end":45,"kind":"keyword","start":0,"text":"///"}]}
/// and the type of (opening) delimiter used.
/// Given the span of `some_macro!(args);`, gives the span of `(` and `)`,
fn find_delimiters(cx: &LateContext<'_>, span: Span) -> Option<(Span, Span, char)> {