class ActiveSupport::Cache::Store

def write_multi(hash, options = nil)
  return hash if hash.empty?
  options = merged_options(options)
  instrument_multi :write_multi, hash, options do |payload|
    entries = hash.each_with_object({}) do |(name, value), memo|
      memo[normalize_key(name, options)] = Entry.new(value, **options.merge(version: normalize_version(name, options)))
    end
    write_multi_entries entries, **options
  end
end