public async Task BufferingWriterAsync()
{
using var writer = new FileBufferingWriter(memoryThreshold: MemoryThreshold, asyncIO: true);
foreach (var chunk in GetChunks())
{
await writer.WriteAsync(chunk);
}
await writer.FlushAsync();
using var ms = new MemoryStream(content.Length);
await writer.CopyToAsync(ms);
}