src/common/fast-path.js/getNodeHelper
function getNodeHelper(path, count) {
  const s = path.stack;

  for (let i = s.length - 1; i >= 0; i -= 2) {
    const value = s[i];

    if (value && !Array.isArray(value) && --count < 0) {
      return value;
    }
  }

  return null;
}