{"ast_node_type":"variable","tokens":[{"end":79,"kind":"keyword","start":0,"text":"let"}]}
        let method = self.cx.std_path(&[sym::alloc, sym::GlobalAlloc, method]);
    fn call_allocator(&self, method: Symbol, mut args: ThinVec<P<Expr>>) -> P<Expr> {
        let method = self.cx.expr_path(self.cx.path(self.ty_span, method));