Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/class/System.IO.Compression/SharpCompress/Writer/IWriter.cs

@@ -0,0 +1,12 @@
+using System;
+using System.IO;
+using SharpCompress.Common;
+
+namespace SharpCompress.Writer
+{
+    internal interface IWriter : IDisposable
+    {
+        ArchiveType WriterType { get; }
+        void Write(string filename, Stream source, DateTime? modificationTime);
+    }
+}