{"ast_node_type":"variable","tokens":[{"end":40,"kind":"keyword","start":0,"text":"let"}]}
        let ptr = ptr.syntax_node_ptr();
    pub fn ast_id_for_ptr<N: AstIdNode>(&self, ptr: AstPtr<N>) -> FileAstId<N> {
        FileAstId { raw: self.erased_ast_id(ptr), _marker: PhantomData }