diff --git a/src/addons/mod/workshop/assessment/accumulative/services/handler-lazy.ts b/src/addons/mod/workshop/assessment/accumulative/services/handler-lazy.ts
index c9f8bcd8e..fc3f025b1 100644
--- a/src/addons/mod/workshop/assessment/accumulative/services/handler-lazy.ts
+++ b/src/addons/mod/workshop/assessment/accumulative/services/handler-lazy.ts
@@ -35,13 +35,6 @@ export class AddonModWorkshopAssessmentStrategyAccumulativeHandlerLazyService
     extends AddonModWorkshopAssessmentStrategyAccumulativeHandlerService
     implements AddonWorkshopAssessmentStrategyHandler {
 
-    /**
-     * @inheritdoc
-     */
-    async isEnabled(): Promise<boolean> {
-        return true;
-    }
-
     /**
      * @inheritdoc
      */
diff --git a/src/addons/mod/workshop/assessment/accumulative/services/handler.ts b/src/addons/mod/workshop/assessment/accumulative/services/handler.ts
index 9b3e23c07..fd1ab1fba 100644
--- a/src/addons/mod/workshop/assessment/accumulative/services/handler.ts
+++ b/src/addons/mod/workshop/assessment/accumulative/services/handler.ts
@@ -20,11 +20,19 @@ import {
 } from '@addons/mod/workshop/assessment/constants';
 import type { AddonModWorkshopAssessmentStrategyAccumulativeHandlerLazyService } from './handler-lazy';
 
-export class AddonModWorkshopAssessmentStrategyAccumulativeHandlerService {
+export class AddonModWorkshopAssessmentStrategyAccumulativeHandlerService
+    implements Partial<AddonWorkshopAssessmentStrategyHandler> {
 
     name = ADDON_MOD_WORKSHOP_ASSESSMENT_STRATEGY_ACCUMULATIVE_NAME;
     strategyName = ADDON_MOD_WORKSHOP_ASSESSMENT_STRATEGY_ACCUMULATIVE_STRATEGY_NAME;
 
+    /**
+     * @inheritdoc
+     */
+    async isEnabled(): Promise<boolean> {
+        return true;
+    }
+
 }
 
 /**
@@ -44,7 +52,6 @@ export function getAssessmentStrategyHandlerInstance(): AddonWorkshopAssessmentS
 
     lazyHandler.setEagerInstance(new AddonModWorkshopAssessmentStrategyAccumulativeHandlerService());
     lazyHandler.setLazyInstanceMethods([
-        'isEnabled',
         'getComponent',
         'getOriginalValues',
         'hasDataChanged',
diff --git a/src/addons/mod/workshop/assessment/comments/services/handler-lazy.ts b/src/addons/mod/workshop/assessment/comments/services/handler-lazy.ts
index 702c83393..3a889063d 100644
--- a/src/addons/mod/workshop/assessment/comments/services/handler-lazy.ts
+++ b/src/addons/mod/workshop/assessment/comments/services/handler-lazy.ts
@@ -34,13 +34,6 @@ export class AddonModWorkshopAssessmentStrategyCommentsHandlerLazyService
     extends AddonModWorkshopAssessmentStrategyCommentsHandlerService
     implements AddonWorkshopAssessmentStrategyHandler {
 
-    /**
-     * @inheritdoc
-     */
-    async isEnabled(): Promise<boolean> {
-        return true;
-    }
-
     /**
      * @inheritdoc
      */
diff --git a/src/addons/mod/workshop/assessment/comments/services/handler.ts b/src/addons/mod/workshop/assessment/comments/services/handler.ts
index 9cceb5ef4..d30698cd2 100644
--- a/src/addons/mod/workshop/assessment/comments/services/handler.ts
+++ b/src/addons/mod/workshop/assessment/comments/services/handler.ts
@@ -20,11 +20,19 @@ import {
 } from '@addons/mod/workshop/assessment/constants';
 import type { AddonModWorkshopAssessmentStrategyCommentsHandlerLazyService } from './handler-lazy';
 
-export class AddonModWorkshopAssessmentStrategyCommentsHandlerService {
+export class AddonModWorkshopAssessmentStrategyCommentsHandlerService
+    implements Partial<AddonWorkshopAssessmentStrategyHandler> {
 
     name = ADDON_MOD_WORKSHOP_ASSESSMENT_STRATEGY_COMMENTS_NAME;
     strategyName = ADDON_MOD_WORKSHOP_ASSESSMENT_STRATEGY_COMMENTS_STRATEGY_NAME;
 
+    /**
+     * @inheritdoc
+     */
+    async isEnabled(): Promise<boolean> {
+        return true;
+    }
+
 }
 
 /**
@@ -44,7 +52,6 @@ export function getAssessmentStrategyHandlerInstance(): AddonWorkshopAssessmentS
 
     lazyHandler.setEagerInstance(new AddonModWorkshopAssessmentStrategyCommentsHandlerService());
     lazyHandler.setLazyInstanceMethods([
-        'isEnabled',
         'getComponent',
         'getOriginalValues',
         'hasDataChanged',
diff --git a/src/addons/mod/workshop/assessment/numerrors/services/handler-lazy.ts b/src/addons/mod/workshop/assessment/numerrors/services/handler-lazy.ts
index 6ec33f065..6d925c167 100644
--- a/src/addons/mod/workshop/assessment/numerrors/services/handler-lazy.ts
+++ b/src/addons/mod/workshop/assessment/numerrors/services/handler-lazy.ts
@@ -34,13 +34,6 @@ export class AddonModWorkshopAssessmentStrategyNumErrorsHandlerLazyService
     extends AddonModWorkshopAssessmentStrategyNumErrorsHandlerService
     implements AddonWorkshopAssessmentStrategyHandler {
 
-    /**
-     * @inheritdoc
-     */
-    async isEnabled(): Promise<boolean> {
-        return true;
-    }
-
     /**
      * @inheritdoc
      */
diff --git a/src/addons/mod/workshop/assessment/numerrors/services/handler.ts b/src/addons/mod/workshop/assessment/numerrors/services/handler.ts
index 74f40eb58..523cd38b9 100644
--- a/src/addons/mod/workshop/assessment/numerrors/services/handler.ts
+++ b/src/addons/mod/workshop/assessment/numerrors/services/handler.ts
@@ -20,11 +20,19 @@ import {
 } from '@addons/mod/workshop/assessment/constants';
 import type { AddonModWorkshopAssessmentStrategyNumErrorsHandlerLazyService } from './handler-lazy';
 
-export class AddonModWorkshopAssessmentStrategyNumErrorsHandlerService {
+export class AddonModWorkshopAssessmentStrategyNumErrorsHandlerService
+    implements Partial<AddonWorkshopAssessmentStrategyHandler> {
 
     name = ADDON_MOD_WORKSHOP_ASSESSMENT_STRATEGY_NUMERRORS_NAME;
     strategyName = ADDON_MOD_WORKSHOP_ASSESSMENT_STRATEGY_NUMERRORS_STRATEGY_NAME;
 
+    /**
+     * @inheritdoc
+     */
+    async isEnabled(): Promise<boolean> {
+        return true;
+    }
+
 }
 
 /**
@@ -44,7 +52,6 @@ export function getAssessmentStrategyHandlerInstance(): AddonWorkshopAssessmentS
 
     lazyHandler.setEagerInstance(new AddonModWorkshopAssessmentStrategyNumErrorsHandlerService());
     lazyHandler.setLazyInstanceMethods([
-        'isEnabled',
         'getComponent',
         'getOriginalValues',
         'hasDataChanged',
diff --git a/src/addons/mod/workshop/assessment/rubric/services/handler-lazy.ts b/src/addons/mod/workshop/assessment/rubric/services/handler-lazy.ts
index c001975f1..0067006cc 100644
--- a/src/addons/mod/workshop/assessment/rubric/services/handler-lazy.ts
+++ b/src/addons/mod/workshop/assessment/rubric/services/handler-lazy.ts
@@ -34,13 +34,6 @@ export class AddonModWorkshopAssessmentStrategyRubricHandlerLazyService
     extends AddonModWorkshopAssessmentStrategyRubricHandlerService
     implements AddonWorkshopAssessmentStrategyHandler {
 
-    /**
-     * @inheritdoc
-     */
-    async isEnabled(): Promise<boolean> {
-        return true;
-    }
-
     /**
      * @inheritdoc
      */
diff --git a/src/addons/mod/workshop/assessment/rubric/services/handler.ts b/src/addons/mod/workshop/assessment/rubric/services/handler.ts
index d61e32fba..9b06d28e5 100644
--- a/src/addons/mod/workshop/assessment/rubric/services/handler.ts
+++ b/src/addons/mod/workshop/assessment/rubric/services/handler.ts
@@ -20,11 +20,19 @@ import {
 } from '@addons/mod/workshop/assessment/constants';
 import type { AddonModWorkshopAssessmentStrategyRubricHandlerLazyService } from './handler-lazy';
 
-export class AddonModWorkshopAssessmentStrategyRubricHandlerService {
+export class AddonModWorkshopAssessmentStrategyRubricHandlerService
+    implements Partial<AddonWorkshopAssessmentStrategyHandler> {
 
     name = ADDON_MOD_WORKSHOP_ASSESSMENT_STRATEGY_RUBRIC_NAME;
     strategyName = ADDON_MOD_WORKSHOP_ASSESSMENT_STRATEGY_RUBRIC_STRATEGY_NAME;
 
+    /**
+     * @inheritdoc
+     */
+    async isEnabled(): Promise<boolean> {
+        return true;
+    }
+
 }
 
 /**
@@ -44,7 +52,6 @@ export function getAssessmentStrategyHandlerInstance(): AddonWorkshopAssessmentS
 
     lazyHandler.setEagerInstance(new AddonModWorkshopAssessmentStrategyRubricHandlerService());
     lazyHandler.setLazyInstanceMethods([
-        'isEnabled',
         'getComponent',
         'getOriginalValues',
         'hasDataChanged',