diff --git a/src/Contracts/Generator.php b/src/Contracts/Generator.php
new file mode 100644
index 0000000..a5c607a
--- /dev/null
+++ b/src/Contracts/Generator.php
@@ -0,0 +1,22 @@
+<?php
+
+namespace Luthfi\CrudGenerator\Contracts;
+
+interface Generator
+{
+    /**
+     * Generate class file content.
+     *
+     * @param  string  $type Type of crud
+     * @return void
+     */
+    public function generate(string $type = 'full');
+
+    /**
+     * Get class file content.
+     *
+     * @param  string  $stubName Name of stub file
+     * @return string
+     */
+    public function getContent(string $stubName);
+}
diff --git a/src/GeneratorCommand.php b/src/GeneratorCommand.php
index c33ff95..d83357b 100644
--- a/src/GeneratorCommand.php
+++ b/src/GeneratorCommand.php
@@ -3,8 +3,8 @@
 namespace Luthfi\CrudGenerator;
 
 use Illuminate\Console\Command;
-use Illuminate\Console\DetectsApplicationNamespace;
 use Illuminate\Filesystem\Filesystem;
+use Illuminate\Console\DetectsApplicationNamespace;
 
 class GeneratorCommand extends Command
 {
@@ -53,9 +53,9 @@ class GeneratorCommand extends Command
     }
 
     /**
-     * Generate class properties for model names in different usage
+     * Generate class properties for model names in different usage.
      *
-     * @return void
+     * @return array
      */
     public function getModelName($modelName = null)
     {
diff --git a/src/Generators/BaseGenerator.php b/src/Generators/BaseGenerator.php
index e735cce..16ae502 100644
--- a/src/Generators/BaseGenerator.php
+++ b/src/Generators/BaseGenerator.php
@@ -2,14 +2,15 @@
 
 namespace Luthfi\CrudGenerator\Generators;
 
-use Illuminate\Console\DetectsApplicationNamespace;
 use Illuminate\Filesystem\Filesystem;
 use Luthfi\CrudGenerator\GeneratorCommand;
+use Illuminate\Console\DetectsApplicationNamespace;
+use Luthfi\CrudGenerator\Contracts\Generator as GeneratorContract;
 
 /**
  * Base Generator Class
  */
-abstract class BaseGenerator
+abstract class BaseGenerator implements GeneratorContract
 {
     use DetectsApplicationNamespace;
 
@@ -71,22 +72,6 @@ abstract class BaseGenerator
     }
 
     /**
-     * Generate class file content
-     *
-     * @param  string $type Type of crud
-     * @return void
-     */
-    abstract public function generate(string $type = 'full');
-
-    /**
-     * Get class file content
-     *
-     * @param  string $stubName Name of stub file
-     * @return void
-     */
-    abstract protected function getContent(string $stubName);
-
-    /**
      * Make directory if the path is not exists
      *
      * @param  string $path Absolute path of targetted directory
diff --git a/src/Generators/FeatureTestGenerator.php b/src/Generators/FeatureTestGenerator.php
index aabef95..aa48f2b 100644
--- a/src/Generators/FeatureTestGenerator.php
+++ b/src/Generators/FeatureTestGenerator.php
@@ -33,7 +33,7 @@ class FeatureTestGenerator extends BaseGenerator
     /**
      * {@inheritDoc}
      */
-    protected function getContent(string $stubName)
+    public function getContent(string $stubName)
     {
         $stub = $this->getStubFileContent($stubName);
         $baseTestClass = config('simple-crud.base_test_class');
diff --git a/src/Generators/FormViewGenerator.php b/src/Generators/FormViewGenerator.php
index f4a3083..9e5f076 100644
--- a/src/Generators/FormViewGenerator.php
+++ b/src/Generators/FormViewGenerator.php
@@ -27,7 +27,7 @@ class FormViewGenerator extends BaseGenerator
     /**
      * {@inheritDoc}
      */
-    protected function getContent(string $stubName)
+    public function getContent(string $stubName)
     {
         return $this->replaceStubString($this->getStubFileContent($stubName));
     }
diff --git a/src/Generators/IndexViewGenerator.php b/src/Generators/IndexViewGenerator.php
index a33e3d5..0c34556 100644
--- a/src/Generators/IndexViewGenerator.php
+++ b/src/Generators/IndexViewGenerator.php
@@ -22,7 +22,7 @@ class IndexViewGenerator extends BaseGenerator
     /**
      * {@inheritDoc}
      */
-    protected function getContent(string $stubName)
+    public function getContent(string $stubName)
     {
         return $this->replaceStubString($this->getStubFileContent($stubName));
     }
diff --git a/src/Generators/LangFileGenerator.php b/src/Generators/LangFileGenerator.php
index 0443b88..1004f37 100644
--- a/src/Generators/LangFileGenerator.php
+++ b/src/Generators/LangFileGenerator.php
@@ -25,7 +25,7 @@ class LangFileGenerator extends BaseGenerator
     /**
      * {@inheritDoc}
      */
-    protected function getContent(string $stubName)
+    public function getContent(string $stubName)
     {
         $langStubPath = __DIR__.'/../stubs/'.$stubName.'.stub';
 
diff --git a/src/Generators/MigrationGenerator.php b/src/Generators/MigrationGenerator.php
index 0a7d705..c15d63f 100644
--- a/src/Generators/MigrationGenerator.php
+++ b/src/Generators/MigrationGenerator.php
@@ -26,7 +26,7 @@ class MigrationGenerator extends BaseGenerator
     /**
      * {@inheritDoc}
      */
-    protected function getContent(string $stubName)
+    public function getContent(string $stubName)
     {
         return $this->replaceStubString($this->getStubFileContent($stubName));
     }
diff --git a/src/Generators/ModelFactoryGenerator.php b/src/Generators/ModelFactoryGenerator.php
index b6191e5..a023f13 100644
--- a/src/Generators/ModelFactoryGenerator.php
+++ b/src/Generators/ModelFactoryGenerator.php
@@ -25,7 +25,7 @@ class ModelFactoryGenerator extends BaseGenerator
     /**
      * {@inheritDoc}
      */
-    protected function getContent(string $stubName)
+    public function getContent(string $stubName)
     {
         $modelFactoryFileContent = $this->getStubFileContent($stubName);
 
diff --git a/src/Generators/ModelGenerator.php b/src/Generators/ModelGenerator.php
index 69b4a52..41abd96 100644
--- a/src/Generators/ModelGenerator.php
+++ b/src/Generators/ModelGenerator.php
@@ -26,7 +26,7 @@ class ModelGenerator extends BaseGenerator
     /**
      * {@inheritDoc}
      */
-    protected function getContent(string $stubName)
+    public function getContent(string $stubName)
     {
         $modelFileContent = $this->getStubFileContent($stubName);
 
diff --git a/src/Generators/ModelPolicyGenerator.php b/src/Generators/ModelPolicyGenerator.php
index 36f3802..e120f71 100644
--- a/src/Generators/ModelPolicyGenerator.php
+++ b/src/Generators/ModelPolicyGenerator.php
@@ -31,7 +31,7 @@ class ModelPolicyGenerator extends BaseGenerator
     /**
      * {@inheritDoc}
      */
-    protected function getContent(string $stubName)
+    public function getContent(string $stubName)
     {
         $stub = $this->getStubFileContent($stubName);
 
diff --git a/src/Generators/ModelPolicyTestGenerator.php b/src/Generators/ModelPolicyTestGenerator.php
index ca316c3..c45f2a5 100644
--- a/src/Generators/ModelPolicyTestGenerator.php
+++ b/src/Generators/ModelPolicyTestGenerator.php
@@ -25,7 +25,7 @@ class ModelPolicyTestGenerator extends BaseGenerator
     /**
      * {@inheritDoc}
      */
-    protected function getContent(string $stubName)
+    public function getContent(string $stubName)
     {
         $stub = $this->getStubFileContent($stubName);
         $baseTestClass = config('simple-crud.base_test_class');
diff --git a/src/Generators/ModelTestGenerator.php b/src/Generators/ModelTestGenerator.php
index 09c05fe..3df67a8 100644
--- a/src/Generators/ModelTestGenerator.php
+++ b/src/Generators/ModelTestGenerator.php
@@ -25,7 +25,7 @@ class ModelTestGenerator extends BaseGenerator
     /**
      * {@inheritDoc}
      */
-    protected function getContent(string $stubName)
+    public function getContent(string $stubName)
     {
         $modelFileContent = $this->getStubFileContent($stubName);
 
diff --git a/src/Generators/RouteGenerator.php b/src/Generators/RouteGenerator.php
index 95a0476..0c22b9e 100644
--- a/src/Generators/RouteGenerator.php
+++ b/src/Generators/RouteGenerator.php
@@ -22,7 +22,7 @@ class RouteGenerator extends BaseGenerator
     /**
      * {@inheritDoc}
      */
-    protected function getContent(string $stubName)
+    public function getContent(string $stubName)
     {
         $stub = $this->getStubFileContent($stubName);
 
diff --git a/src/Generators/ShowViewGenerator.php b/src/Generators/ShowViewGenerator.php
index 6a9809c..0f3d8bd 100644
--- a/src/Generators/ShowViewGenerator.php
+++ b/src/Generators/ShowViewGenerator.php
@@ -22,7 +22,7 @@ class ShowViewGenerator extends BaseGenerator
     /**
      * {@inheritDoc}
      */
-    protected function getContent(string $stubName)
+    public function getContent(string $stubName)
     {
         return $this->replaceStubString($this->getStubFileContent($stubName));
     }