module Github::Validations::Format

def assert_valid_values(permitted, params)
  params.each do |k, v|
    next unless permitted.keys.include?(k)
    if permitted[k].is_a?(Array) && !permitted[k].include?(params[k])
      raise Github::Error::UnknownValue.new(k,v, permitted[k].join(', '))
    elsif permitted[k].is_a?(Regexp) && !(permitted[k] =~ params[k])
      raise Github::Error::UnknownValue.new(k,v, permitted[k])
    end
  end
end