diff --git a/src/Client.php b/src/Client.php
index c930fec..ed795fa 100644
--- a/src/Client.php
+++ b/src/Client.php
@@ -48,6 +48,11 @@ public function __construct(
         $this->createHttpClient();
     }
 
+    /**
+     * Create HTTP client.
+     *
+     * @return void
+     */
     public function createHttpClient(): void
     {
         $httpClientConfig = [