diff --git a/app/src/Concept/Generator.php b/app/src/Concept/Generator.php
new file mode 100644
index 0000000..ab7ffc0
--- /dev/null
+++ b/app/src/Concept/Generator.php
@@ -0,0 +1,9 @@
+<?php
+namespace ProVM\Concept;
+
+use Symfony\Component\Console\Style\StyleInterface;
+
+interface Generator
+{
+    public function generate(StyleInterface $io, bool $dryRun = false): void;
+}
\ No newline at end of file
diff --git a/app/src/Enforce/Generator.php b/app/src/Enforce/Generator.php
new file mode 100644
index 0000000..e7b8238
--- /dev/null
+++ b/app/src/Enforce/Generator.php
@@ -0,0 +1,19 @@
+<?php
+namespace ProVM\Enforce;
+
+use Psr\Log\LoggerInterface;
+use Symfony\Component\Console\Style\StyleInterface;
+use ProVM\Concept;
+
+abstract class Generator implements Concept\Generator
+{
+    public function __construct(protected LoggerInterface $logger) {}
+
+    protected function log(string $message, bool $output = false, ?StyleInterface $io = null): void
+    {
+        $this->logger->info($message);
+        if ($output) {
+            $io->note($message);
+        }
+    }
+}
\ No newline at end of file