in net/JetBrains.DownloadPgpVerifier/src/OpenStreamUtil.cs [11:16]
public static TResult OpenStreamFromString<TResult>(this string str, Func<Stream, TResult> handler)
{
if (handler == null) throw new ArgumentNullException(nameof(handler));
using var stream = new MemoryStream(Encoding.UTF8.GetBytes(str), false);
return handler(stream);
}