def display_fields=(new_val)
      raise JSS::InvalidDataError, 'display_fields must be an Array.' unless new_val.is_a? Array
      return if new_val.sort == @display_fields.sort
      @display_fields = new_val
      @need_to_update = true
    end
def display_fields=(new_val)
      raise JSS::InvalidDataError, 'display_fields must be an Array.' unless new_val.is_a? Array
      return if new_val.sort == @display_fields.sort
      @display_fields = new_val
      @need_to_update = true
    end
Set the list of fields to be retrieved with the
 search results.

 @param new_val[Array<String>] the new field names