code: function copyMetaProperties(dest, source) {
      if (!dest || !source) {
          return dest;
      }
  
      let fields = ['_id', '_updated'];
  
      for (let field of fields) {
          dest[field] = source[field];
      }
  
      return dest;
  }
docs: Grab meta google drive meta properties from source and add those to dest.
  
  @param dest
  @param source