Couchbase .NET SDK 3.4

await collection
    .InsertAsync(key, Encoding.UTF8.GetBytes("hello"), options =>
    {
        options.Expiry(TimeSpan.FromSeconds(30));
        options.Timeout(TimeSpan.FromMinutes(5));
    })
    .ConfigureAwait(false);

using var result = await collection.GetAsync(key, options => options.Transcoder(new LegacyTranscoder()))
    .ConfigureAwait(false);