Refactor, add traits

src/Glassboxx/Traits/UsesAuthTokenTrait.php

@@ -0,0 +1,15 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Opdavies\Glassboxx\Traits;
+
+trait UsesAuthTokenTrait
+{
+    public function withAuthToken(string $authToken): self
+    {
+        $this->authToken = $authToken;
+
+        return $this;
+    }
+}

src/Glassboxx/Traits/UsesConfigTrait.php

@@ -0,0 +1,20 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Opdavies\Glassboxx\Traits;
+
+use Opdavies\Glassboxx\Config;
+
+trait UsesConfigTrait
+{
+    /** @var Config */
+    protected $config;
+
+    public function withConfig(Config $config): self
+    {
+        $this->config = $config;
+
+        return $this;
+    }
+}