const depth = (n) => {
  if (n > 1) {
    return {
      children: {
        include: depth(n - 1),
      },
    };
  } else {
    return {
      children: true,
    };
  }
};

console.log(JSON.stringify(depth(1000)));
//console.log(JSON.stringify(depth(2)))
//console.log(JSON.stringify(depth(3)))
//console.log(JSON.stringify(depth(4)))