diff --git a/source/vibe/core/stream.d b/source/vibe/core/stream.d
index cd8331a..12b79f1 100644
--- a/source/vibe/core/stream.d
+++ b/source/vibe/core/stream.d
@@ -17,6 +17,7 @@
 module vibe.core.stream;
 
 import vibe.internal.traits : checkInterfaceConformance, validateInterfaceConformance;
+import vibe.internal.interfaceproxy;
 import core.time;
 import std.algorithm;
 import std.conv;
@@ -275,6 +276,19 @@ final class NullOutputStream : OutputStream {
 	void finalize() {}
 }
 
+
+/// Generic storage for types that implement the `InputStream` interface
+alias InputStreamProxy = InterfaceProxy!InputStream;
+/// Generic storage for types that implement the `OutputStream` interface
+alias OutputStreamProxy = InterfaceProxy!OutputStream;
+/// Generic storage for types that implement the `Stream` interface
+alias StreamProxy = InterfaceProxy!Stream;
+/// Generic storage for types that implement the `ConnectionStream` interface
+alias ConnectionStreamProxy = InterfaceProxy!ConnectionStream;
+/// Generic storage for types that implement the `RandomAccessStream` interface
+alias RandomAccessStreamProxy = InterfaceProxy!RandomAccessStream;
+
+
 /** Tests if the given aggregate type is a valid input stream.
 
 	See_also: `validateInputStream`