init commit

output/Libraries/BouncyCastle.Crypto/Org/BouncyCastle/Bcpg/OutputStreamPacket.cs

@@ -0,0 +1,21 @@
+using System;
+
+namespace Org.BouncyCastle.Bcpg;
+
+public abstract class OutputStreamPacket
+{
+	private readonly BcpgOutputStream bcpgOut;
+
+	internal OutputStreamPacket(BcpgOutputStream bcpgOut)
+	{
+		if (bcpgOut == null)
+		{
+			throw new ArgumentNullException("bcpgOut");
+		}
+		this.bcpgOut = bcpgOut;
+	}
+
+	public abstract BcpgOutputStream Open();
+
+	public abstract void Close();
+}