diff --git a/src/Attribute/Message.php b/src/Attribute/Message.php
index 73f8d98..daf7faf 100644
--- a/src/Attribute/Message.php
+++ b/src/Attribute/Message.php
@@ -17,6 +17,7 @@ public function __construct(
         public readonly string $name,
         public array $properties = [],
         public array $channels = [],
+        public array $operations = [],
     ) {
     }
 
diff --git a/src/Attribute/Operation.php b/src/Attribute/Operation.php
index 743c3a6..f52fcdb 100644
--- a/src/Attribute/Operation.php
+++ b/src/Attribute/Operation.php
@@ -28,4 +28,9 @@ public function toArray(): array
             ),
         ];
     }
+
+    public function addChannel(Channel $channel): void
+    {
+        $this->channels[] = $channel;
+    }
 }
diff --git a/src/DocumentationStrategy/AttributeDocumentationStrategy.php b/src/DocumentationStrategy/AttributeDocumentationStrategy.php
index d3fe12b..931f7e9 100644
--- a/src/DocumentationStrategy/AttributeDocumentationStrategy.php
+++ b/src/DocumentationStrategy/AttributeDocumentationStrategy.php
@@ -6,6 +6,7 @@
 
 use Ferror\AsyncapiDocBundle\Attribute\Channel;
 use Ferror\AsyncapiDocBundle\Attribute\Message;
+use Ferror\AsyncapiDocBundle\Attribute\Operation;
 use ReflectionAttribute;
 use ReflectionClass;
 use ReflectionException;
@@ -36,7 +37,17 @@ public function document(string $class): Message
             throw new DocumentationStrategyException('Error: class ' . $class . ' must have at least ' . Message::class . ' attribute.');
         }
 
+        /** @var ReflectionAttribute<Operation>[] $operationAttributes */
+        $operationAttributes = $reflection->getAttributes(Operation::class);
+
+        /** @var ReflectionAttribute<Channel>[] $channelAttributes */
+        $channelAttributes = $reflection->getAttributes(Channel::class);
+
         $message = $messageAttributes[0]->newInstance();
+        $operation = $operationAttributes[0]->newInstance();
+        $channel = $channelAttributes[0]->newInstance();
+
+        $operation->addChannel($channel);
 
         foreach ($this->propertyExtractor->extract($class) as $property) {
             $message->addProperty($property);