deserialize = (object) => {
  if (object == null) {
    return {};
  }

  const result = {};
  for (const [key, val] of Object.entries(object)) {
    result[key] = Buffer.from(val, 'base64').toString();
  }
  return result;
}
Deserialize k8s secret's base64 encoded data structure to key-value object
@param {Object} object - k8s secret's data
@returns {Object} key-value dictionary, value is string.