class AwsRecord::Generators::GeneratedAttribute

def validate_opt_combs(name, type, opts)
  return unless opts
  is_hkey = opts.key?(:hash_key)
  is_rkey = opts.key?(:range_key)
  if is_hkey && is_rkey
    raise ArgumentError,
          "Field #{name} cannot be a range key and hash key simultaneously"
  end
  return unless is_hkey && INVALID_HKEY_TYPES.include?(type)
  raise ArgumentError,
        "Field #{name} cannot be a hash key and be of type #{type}"
end