improved type inference in plugin

lynglib/src/commonMain/kotlin/net/sergeych/lynon/packer.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Sergey S. Chernov real.sergeych@gmail.com
+ * Copyright 2026 Sergey S. Chernov real.sergeych@gmail.com
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,10 +18,7 @@
 package net.sergeych.lynon
 
 import net.sergeych.lyng.Scope
-import net.sergeych.lyng.obj.Obj
-import net.sergeych.lyng.obj.ObjBitBuffer
-import net.sergeych.lyng.obj.ObjClass
-import net.sergeych.lyng.obj.ObjString
+import net.sergeych.lyng.obj.*
 
 // Most often used types:
 
@@ -53,14 +50,35 @@ object ObjLynonClass : ObjClass("Lynon") {
     }
 }
 
+/**
+ * Encode any object into Lynon format. Note that it has a special
+ * handling for void values, returning an empty byte array.
+ *
+ * This is the default behavior for encoding void values in Lynon format,
+ * ensuring consistency with decoding behavior. It matches the [lynonDecodeAny]
+ * behavior for handling void values.
+ */
 @Suppress("unused")
 suspend fun lynonEncodeAny(scope: Scope, value: Obj): UByteArray =
-    (ObjLynonClass.encodeAny(scope, value))
-        .bitArray.asUByteArray()
+    if (value == ObjVoid)
+        ubyteArrayOf()
+    else
+        (ObjLynonClass.encodeAny(scope, value))
+            .bitArray.asUByteArray()
 
+
+/**
+ * Decode any object from Lynon format. If the input is empty, returns ObjVoid.
+ * This behavior is designed to handle cases where the input data might be incomplete
+ * or intentionally left empty, indicating a void or null value and matches
+ * the [lynonEncodeAny] behavior [ObjVoid].
+ */
 @Suppress("unused")
 suspend fun lynonDecodeAny(scope: Scope, encoded: UByteArray): Obj =
-    ObjLynonClass.decodeAny(
+    if (encoded.isEmpty())
+        ObjVoid
+    else
+        ObjLynonClass.decodeAny(
         scope,
         ObjBitBuffer(
             BitArray(encoded, 8)