diff --git a/config-serializer/Serializable.ts b/config-serializer/Serializable.ts
index 5949e77e..ac056fc9 100644
--- a/config-serializer/Serializable.ts
+++ b/config-serializer/Serializable.ts
@@ -1,6 +1,35 @@
-interface Serializable<T> {
-    fromJsObject(jsObject: any): T;
-    fromBinary(buffer: UhkBuffer): T;
-    toJsObject(): any;
-    toBinary(buffer: UhkBuffer);
+interface Function {
+    name: string;
+}
+
+abstract class Serializable<T> {
+
+    private static depth = 0;
+
+    fromJsObject(jsObject: any): T {
+        let identation = new Array(Serializable.depth + 1).join('    ');
+        process.stdout.write(`${identation}* ${this.constructor.name}.fromJsObject(${JSON.stringify(jsObject)}) => `);
+        Serializable.depth++;
+        let value = this._fromJsObject(jsObject);
+        Serializable.depth--;
+        process.stdout.write(`${value.toString()}\n`);
+        return value;
+    }
+
+    fromBinary(buffer: UhkBuffer): T {
+        return this._fromBinary(buffer);
+    }
+
+    toJsObject(): any {
+        return this._toJsObject();
+    }
+
+    toBinary(buffer: UhkBuffer): void {
+        this._toBinary(buffer);
+    }
+
+    abstract _fromJsObject(jsObject: any): T;
+    abstract _fromBinary(buffer: UhkBuffer): T;
+    abstract _toJsObject(): any;
+    abstract _toBinary(buffer: UhkBuffer): void;
 }
diff --git a/config-serializer/config-items/DualRoleKeystrokeAction.ts b/config-serializer/config-items/DualRoleKeystrokeAction.ts
index 93aaeae1..b05e8d27 100644
--- a/config-serializer/config-items/DualRoleKeystrokeAction.ts
+++ b/config-serializer/config-items/DualRoleKeystrokeAction.ts
@@ -12,7 +12,7 @@ enum LongPressAction {
     mouse
 }
 
-class DualRoleKeystrokeAction extends KeyAction implements Serializable<DualRoleKeystrokeAction> {
+class DualRoleKeystrokeAction extends KeyAction {
 
     public scancode;
 
@@ -33,21 +33,21 @@ class DualRoleKeystrokeAction extends KeyAction implements Serializable<DualRole
         return LongPressAction[keyActionIdParam] !== undefined;
     }
 
-    fromJsObject(jsObject: any): DualRoleKeystrokeAction {
+    _fromJsObject(jsObject: any): DualRoleKeystrokeAction {
         this.assertKeyActionType(jsObject, KeyActionType.DualRoleKeystrokeAction, 'DualRoleKeystrokeAction');
         this.scancode = jsObject.scancode;
         this.longPressAction = LongPressAction[<string>jsObject.longPressAction];
         return this;
     }
 
-    fromBinary(buffer: UhkBuffer): DualRoleKeystrokeAction {
+    _fromBinary(buffer: UhkBuffer): DualRoleKeystrokeAction {
         this.readAndAssertKeyActionId(buffer, KeyActionId.DualRoleKeystrokeAction, 'DualRoleKeystrokeAction');
         this.scancode = buffer.readUInt8();
         this.longPressAction = buffer.readUInt8();
         return this;
     }
 
-    toJsObject(): any {
+    _toJsObject(): any {
         return {
             keyActionType: KeyActionType.DualRoleKeystrokeAction,
             scancode: this.scancode,
@@ -55,9 +55,13 @@ class DualRoleKeystrokeAction extends KeyAction implements Serializable<DualRole
         };
     }
 
-    toBinary(buffer: UhkBuffer) {
+    _toBinary(buffer: UhkBuffer): void {
         buffer.writeUInt8(KeyActionId.DualRoleKeystrokeAction);
         buffer.writeUInt8(this.scancode);
         buffer.writeUInt8(this.longPressAction);
     }
+
+    toString(): string {
+        return `<DualRoleKeystrokeAction scancode="${this.scancode}" longPressAction="${this.longPressAction}">`;
+    }
 }
diff --git a/config-serializer/config-items/KeyAction.ts b/config-serializer/config-items/KeyAction.ts
index d2c4be30..7f1e1fc0 100644
--- a/config-serializer/config-items/KeyAction.ts
+++ b/config-serializer/config-items/KeyAction.ts
@@ -23,12 +23,7 @@ let KeyActionType = {
     PlayMacroAction              : 'playMacro'
 }
 
-abstract class KeyAction implements Serializable<KeyAction> {
-    abstract fromJsObject(jsObject: any): KeyAction;
-    abstract fromBinary(buffer: UhkBuffer): KeyAction;
-    abstract toJsObject(): any;
-    abstract toBinary(buffer: UhkBuffer);
-
+abstract class KeyAction extends Serializable<KeyAction> {
     assertKeyActionType(jsObject: any, keyActionTypeString: string, classname: string) {
         if (jsObject.keyActionType !== keyActionTypeString) {
             console.log(arguments.callee.prototype.name);
@@ -42,4 +37,9 @@ abstract class KeyAction implements Serializable<KeyAction> {
             throw `Invalid ${classname} first byte: ${readKeyActionId}`;
         }
     }
+
+    abstract _fromJsObject(jsObject: any): KeyAction;
+    abstract _fromBinary(buffer: UhkBuffer): KeyAction;
+    abstract _toJsObject(): any;
+    abstract _toBinary(buffer: UhkBuffer): void;
 }
diff --git a/config-serializer/config-items/KeyActions.ts b/config-serializer/config-items/KeyActions.ts
index 16f9977d..8b4bc640 100644
--- a/config-serializer/config-items/KeyActions.ts
+++ b/config-serializer/config-items/KeyActions.ts
@@ -1,15 +1,15 @@
-class KeyActions implements Serializable<KeyActions> {
+class KeyActions extends Serializable<KeyActions> {
 
     keyActions: Serializable<KeyAction>[] = [];
 
-    fromJsObject(jsObjects: any): KeyActions {
+    _fromJsObject(jsObjects: any): KeyActions {
         for (let jsObject of jsObjects) {
             this.keyActions.push(KeyActionFactory.fromJsObject(jsObject));
         }
         return this;
     }
 
-    fromBinary(buffer: UhkBuffer): KeyActions {
+    _fromBinary(buffer: UhkBuffer): KeyActions {
         let arrayLength = buffer.readCompactLength();
         for (let i = 0; i < arrayLength; i++) {
             this.keyActions.push(KeyActionFactory.fromBinary(buffer));
@@ -17,7 +17,7 @@ class KeyActions implements Serializable<KeyActions> {
         return this;
     }
 
-    toJsObject(): any {
+    _toJsObject(): any {
         let array = [];
         for (let keyAction of this.keyActions) {
             array.push(keyAction.toJsObject());
@@ -25,10 +25,14 @@ class KeyActions implements Serializable<KeyActions> {
         return array;
     }
 
-    toBinary(buffer: UhkBuffer) {
+    _toBinary(buffer: UhkBuffer) {
         buffer.writeCompactLength(this.keyActions.length);
         for (let keyAction of this.keyActions) {
             keyAction.toBinary(buffer);
         }
     }
+
+    toString(): string {
+        return `<KeyActions length="${this.keyActions.length}">`;
+    }
 }
diff --git a/config-serializer/config-items/KeystrokeAction.ts b/config-serializer/config-items/KeystrokeAction.ts
index d529d239..06ab8ce1 100644
--- a/config-serializer/config-items/KeystrokeAction.ts
+++ b/config-serializer/config-items/KeystrokeAction.ts
@@ -1,4 +1,4 @@
-class KeystrokeAction extends KeyAction implements Serializable<KeystrokeAction> {
+class KeystrokeAction extends KeyAction {
 
     private _scancode: number;
 
@@ -13,27 +13,31 @@ class KeystrokeAction extends KeyAction implements Serializable<KeystrokeAction>
         this._scancode = value;
     }
 
-    fromJsObject(jsObject: any): KeystrokeAction {
+    _fromJsObject(jsObject: any): KeystrokeAction {
         this.assertKeyActionType(jsObject, KeyActionType.KeystrokeAction, 'KeystrokeAction');
         this.scancode = jsObject.scancode;
         return this;
     }
 
-    fromBinary(buffer: UhkBuffer): KeystrokeAction {
+    _fromBinary(buffer: UhkBuffer): KeystrokeAction {
         this.readAndAssertKeyActionId(buffer, KeyActionId.KeystrokeAction, 'KeystrokeAction');
         this.scancode = buffer.readUInt8();
         return this;
     }
 
-    toJsObject(): any {
+    _toJsObject(): any {
         return {
             keyActionType: KeyActionType.KeystrokeAction,
             scancode: this.scancode
         };
     }
 
-    toBinary(buffer: UhkBuffer) {
+    _toBinary(buffer: UhkBuffer) {
         buffer.writeUInt8(KeyActionId.KeystrokeAction);
         buffer.writeUInt8(this.scancode);
     }
+
+    toString(): string {
+        return `<KeystrokeAction scancode="${this.scancode}">`;
+    }
 }
diff --git a/config-serializer/config-items/KeystrokeWithModifiersAction.ts b/config-serializer/config-items/KeystrokeWithModifiersAction.ts
index a4376bc8..646b8eee 100644
--- a/config-serializer/config-items/KeystrokeWithModifiersAction.ts
+++ b/config-serializer/config-items/KeystrokeWithModifiersAction.ts
@@ -1,4 +1,4 @@
-class KeystrokeWithModifiersAction extends KeyAction implements Serializable<KeystrokeWithModifiersAction> {
+class KeystrokeWithModifiersAction extends KeyAction {
 
     static keyActionTypeString = 'keystrokeWithModifiers';
 
@@ -17,7 +17,7 @@ class KeystrokeWithModifiersAction extends KeyAction implements Serializable<Key
         this._scancode = value;
     }
 
-    fromJsObject(jsObject: any): KeystrokeWithModifiersAction {
+    _fromJsObject(jsObject: any): KeystrokeWithModifiersAction {
         this.assertKeyActionType(
             jsObject, KeystrokeWithModifiersAction.keyActionTypeString, 'KeystrokeWithModifiersAction');
         this.scancode = jsObject.scancode;
@@ -25,14 +25,14 @@ class KeystrokeWithModifiersAction extends KeyAction implements Serializable<Key
         return this;
     }
 
-    fromBinary(buffer: UhkBuffer): KeystrokeWithModifiersAction {
+    _fromBinary(buffer: UhkBuffer): KeystrokeWithModifiersAction {
         this.readAndAssertKeyActionId(buffer, KeyActionId.KeystrokeWithModifiersAction, 'KeystrokeWithModifiersAction');
         this.scancode = buffer.readUInt8();
         this.modifierMask = buffer.readUInt8();
         return this;
     }
 
-    toJsObject(): any {
+    _toJsObject(): any {
         return {
             keyActionType: KeystrokeWithModifiersAction.keyActionTypeString,
             scancode: this.scancode,
@@ -40,9 +40,13 @@ class KeystrokeWithModifiersAction extends KeyAction implements Serializable<Key
         };
     }
 
-    toBinary(buffer: UhkBuffer) {
+    _toBinary(buffer: UhkBuffer) {
         buffer.writeUInt8(KeyActionId.KeystrokeWithModifiersAction);
         buffer.writeUInt8(this.scancode);
         buffer.writeUInt8(this.modifierMask);
     }
+
+    toString(): string {
+        return `<KeystrokeWithModifiersAction scancode="${this.scancode}" modifierMask="${this.modifierMask}">`;
+    }
 }
diff --git a/config-serializer/config-items/MouseAction.ts b/config-serializer/config-items/MouseAction.ts
index 706e3e95..b1400f4d 100644
--- a/config-serializer/config-items/MouseAction.ts
+++ b/config-serializer/config-items/MouseAction.ts
@@ -14,7 +14,7 @@ enum MouseActionParam {
     decelerate
 }
 
-class MouseAction extends KeyAction implements Serializable<MouseAction> {
+class MouseAction extends KeyAction {
     private _mouseAction: MouseActionParam;
 
     get mouseAction(): MouseActionParam {
@@ -32,13 +32,13 @@ class MouseAction extends KeyAction implements Serializable<MouseAction> {
 //        return MouseActionParam[<string>keyActionParam] !== undefined;
 //    }
 
-    fromJsObject(jsObject: any): MouseAction {
+    _fromJsObject(jsObject: any): MouseAction {
         this.assertKeyActionType(jsObject, KeyActionType.MouseAction, 'MouseAction');
         this.mouseAction = MouseActionParam[<string>jsObject.mouseAction];
         return this;
     }
 
-    fromBinary(buffer: UhkBuffer): MouseAction {
+    _fromBinary(buffer: UhkBuffer): MouseAction {
         this.readAndAssertKeyActionId(buffer, KeyActionId.MouseAction, 'MouseAction');
 
         this.mouseAction = buffer.readUInt8();
@@ -49,15 +49,19 @@ class MouseAction extends KeyAction implements Serializable<MouseAction> {
         return this;
     }
 
-    toJsObject(): any {
+    _toJsObject(): any {
         return {
             keyActionType: KeyActionType.MouseAction,
             mouseAction: MouseActionParam[this.mouseAction]
         };
     }
 
-    toBinary(buffer: UhkBuffer) {
+    _toBinary(buffer: UhkBuffer) {
         buffer.writeUInt8(KeyActionId.MouseAction);
         buffer.writeUInt8(this.mouseAction);
     }
+
+    toString(): string {
+        return `<MouseAction mouseAction="${this.mouseAction}">`;
+    }
 }
diff --git a/config-serializer/config-items/NoneAction.ts b/config-serializer/config-items/NoneAction.ts
index d190d635..16312074 100644
--- a/config-serializer/config-items/NoneAction.ts
+++ b/config-serializer/config-items/NoneAction.ts
@@ -1,22 +1,26 @@
-class NoneAction extends KeyAction implements Serializable<NoneAction> {
+class NoneAction extends KeyAction {
 
-    fromJsObject(jsObject: any): NoneAction {
+    _fromJsObject(jsObject: any): NoneAction {
         this.assertKeyActionType(jsObject, KeyActionType.NoneAction, 'NoneAction');
         return this;
     }
 
-    fromBinary(buffer: UhkBuffer): NoneAction {
+    _fromBinary(buffer: UhkBuffer): NoneAction {
         this.readAndAssertKeyActionId(buffer, KeyActionId.NoneAction, 'NoneAction');
         return this;
     }
 
-    toJsObject(): any {
+    _toJsObject(): any {
         return {
             keyActionType: KeyActionType.NoneAction
         };
     }
 
-    toBinary(buffer: UhkBuffer) {
+    _toBinary(buffer: UhkBuffer) {
         buffer.writeUInt8(KeyActionId.NoneAction);
     }
+
+    toString(): string {
+        return '<NoneAction>';
+    }
 }
diff --git a/config-serializer/config-items/PlayMacroAction.ts b/config-serializer/config-items/PlayMacroAction.ts
index 292eed56..d1713634 100644
--- a/config-serializer/config-items/PlayMacroAction.ts
+++ b/config-serializer/config-items/PlayMacroAction.ts
@@ -1,4 +1,4 @@
-class PlayMacroAction extends KeyAction implements Serializable<PlayMacroAction> {
+class PlayMacroAction extends KeyAction {
 
     private _macroId: number;
 
@@ -13,27 +13,31 @@ class PlayMacroAction extends KeyAction implements Serializable<PlayMacroAction>
         this._macroId = value;
     }
 
-    fromJsObject(jsObject: any): PlayMacroAction {
+    _fromJsObject(jsObject: any): PlayMacroAction {
         this.assertKeyActionType(jsObject, KeyActionType.PlayMacroAction, 'PlayMacroAction');
         this.macroId = jsObject.macroId;
         return this;
     }
 
-    fromBinary(buffer: UhkBuffer): PlayMacroAction {
+    _fromBinary(buffer: UhkBuffer): PlayMacroAction {
         this.readAndAssertKeyActionId(buffer, KeyActionId.PlayMacroAction, 'PlayMacroAction');
         this.macroId = buffer.readUInt8();
         return this;
     }
 
-    toJsObject(): any {
+    _toJsObject(): any {
         return {
             keyActionType: KeyActionType.PlayMacroAction,
             macroId: this.macroId
         };
     }
 
-    toBinary(buffer: UhkBuffer) {
+    _toBinary(buffer: UhkBuffer) {
         buffer.writeUInt8(KeyActionId.PlayMacroAction);
         buffer.writeUInt8(this.macroId);
     }
+
+    toString(): string {
+        return `<PlayMacroAction macroId="${this.macroId}">`;
+    }
 }
diff --git a/config-serializer/config-items/SwitchKeymapAction.ts b/config-serializer/config-items/SwitchKeymapAction.ts
index 91cf6a02..7bde3bd8 100644
--- a/config-serializer/config-items/SwitchKeymapAction.ts
+++ b/config-serializer/config-items/SwitchKeymapAction.ts
@@ -1,4 +1,4 @@
-class SwitchKeymapAction extends KeyAction implements Serializable<SwitchKeymapAction> {
+class SwitchKeymapAction extends KeyAction {
 
     private _keymapId: number;
 
@@ -13,27 +13,31 @@ class SwitchKeymapAction extends KeyAction implements Serializable<SwitchKeymapA
         this._keymapId = value;
     }
 
-    fromJsObject(jsObject: any): SwitchKeymapAction {
+    _fromJsObject(jsObject: any): SwitchKeymapAction {
         this.assertKeyActionType(jsObject, KeyActionType.SwitchKeymapAction, 'SwitchKeymapAction');
         this.keymapId = jsObject.keymapId;
         return this;
     }
 
-    fromBinary(buffer: UhkBuffer): SwitchKeymapAction {
+    _fromBinary(buffer: UhkBuffer): SwitchKeymapAction {
         this.readAndAssertKeyActionId(buffer, KeyActionId.SwitchKeymapAction, 'SwitchKeymapAction');
         this.keymapId = buffer.readUInt8();
         return this;
     }
 
-    toJsObject(): any {
+    _toJsObject(): any {
         return {
             keyActionType: KeyActionType.SwitchKeymapAction,
             keymapId: this.keymapId
         };
     }
 
-    toBinary(buffer: UhkBuffer) {
+    _toBinary(buffer: UhkBuffer) {
         buffer.writeUInt8(KeyActionId.SwitchKeymapAction);
         buffer.writeUInt8(this.keymapId);
     }
+
+    toString(): string {
+        return `<SwitchKeymapAction keymapId="${this.keymapId}">`;
+    }
 }
diff --git a/config-serializer/config-items/SwitchLayerAction.ts b/config-serializer/config-items/SwitchLayerAction.ts
index a81581d4..89b92399 100644
--- a/config-serializer/config-items/SwitchLayerAction.ts
+++ b/config-serializer/config-items/SwitchLayerAction.ts
@@ -4,7 +4,7 @@ enum Layer {
     mouse
 }
 
-class SwitchLayerAction extends KeyAction implements Serializable<SwitchLayerAction> {
+class SwitchLayerAction extends KeyAction {
 
     static toggleFlag = 0x80;
 
@@ -28,14 +28,14 @@ class SwitchLayerAction extends KeyAction implements Serializable<SwitchLayerAct
         return this.isLayerToggleable ? SwitchLayerAction.toggleFlag : 0;
     }
 
-    fromJsObject(jsObject: any): SwitchLayerAction {
+    _fromJsObject(jsObject: any): SwitchLayerAction {
         this.assertKeyActionType(jsObject, KeyActionType.SwitchLayerAction, 'SwitchLayerAction');
         this.layer = Layer[<string>jsObject.layer];
         this.isLayerToggleable = jsObject.toggle;
         return this;
     }
 
-    fromBinary(buffer: UhkBuffer): SwitchLayerAction {
+    _fromBinary(buffer: UhkBuffer): SwitchLayerAction {
         this.readAndAssertKeyActionId(buffer, KeyActionId.SwitchLayerAction, 'SwitchLayerAction');
         let layer = buffer.readUInt8();
         this.isLayerToggleable = (layer & SwitchLayerAction.toggleFlag) !== 0;
@@ -44,7 +44,7 @@ class SwitchLayerAction extends KeyAction implements Serializable<SwitchLayerAct
         return this;
     }
 
-    toJsObject(): any {
+    _toJsObject(): any {
         return {
             keyActionType: KeyActionType.SwitchLayerAction,
             layer: Layer[this.layer],
@@ -52,8 +52,12 @@ class SwitchLayerAction extends KeyAction implements Serializable<SwitchLayerAct
         };
     }
 
-    toBinary(buffer: UhkBuffer) {
+    _toBinary(buffer: UhkBuffer) {
         buffer.writeUInt8(KeyActionId.SwitchLayerAction);
         buffer.writeUInt8(this.layer | this.getToggleFlag());
     }
+
+    toString(): string {
+        return `<SwitchLayerAction layer="${this.layer}" toggle="${this.isLayerToggleable}">`;
+    }
 }