{"ast_node_type":"other","tokens":[{"end":96,"kind":"keyword","start":0,"text":"self.mutated_tree.get_or_insert_with(||"}]}
        self.mutated_tree.get_or_insert_with(|| TreeMutator::new(node.syntax())).make_mut(&node)
    pub fn make_mut<N: AstNode>(&mut self, node: N) -> N {
    }