{"ast_node_type":"other","tokens":[{"end":99,"kind":"keyword","start":0,"text":"///"}]}
    /// return the span of whole call and the span for all arguments expect the first one (`self`).
    /// Check if the source is call expression and the first argument is `self`. If true,
    fn call_has_self_arg(&self, source: PathSource<'_, '_, '_>) -> Option<(Span, Option<Span>)> {