def to_a(with_errors: false, with_values: false)
      options.map {|opt| opt.to_h(with_errors: with_errors, with_value: with_values) }
    end
def to_a(with_errors: false, with_values: false)
      options.map {|opt| opt.to_h(with_errors: with_errors, with_value: with_values) }
    end
Convert Group to an Array of Hashes (by calling .to_h on each member)
 @return [Array<Hash>]