Update parameter

Author: fhpimenta

composer.json

@@ -1,24 +1,31 @@
 {
-  "name": "clarification/sparkpost-laravel-driver",
-  "type": "library",
-  "description" : "Sparkpost mail driver for Laravel",
-  "keywords": ["laravel", "mail", "driver", "sparkpost"],
-  "license": "MIT",
-  "homepage" : "http://clarification.io",
-  "authors": [
-    {
-      "name" : "Robin Lidbetter",
-      "role" : "Developer"
+    "name": "clarification/sparkpost-laravel-driver",
+    "type": "library",
+    "description" : "Sparkpost mail driver for Laravel",
+    "keywords": ["laravel", "mail", "driver", "sparkpost"],
+    "license": "MIT",
+    "homepage" : "http://clarification.io",
+    "authors": [
+        {
+            "name" : "Robin Lidbetter",
+            "role" : "Developer"
+        }
+    ],
+    "require": {
+        "guzzlehttp/guzzle": ">=5.0",
+        "illuminate/container": ">=5.0",
+        "swiftmailer/swiftmailer": "~5.1||~6.0"
+    },
+    "extra": {
+        "laravel": {
+            "providers": [
+                "Clarification\\MailDrivers\\Sparkpost\\SparkpostServiceProvider"
+            ]
+        }
+    },
+    "autoload": {
+        "psr-4": {
+            "Clarification\\MailDrivers\\Sparkpost\\": "src"
+        }
     }
-  ],
-  "require": {
-    "guzzlehttp/guzzle": ">=5.0",
-    "illuminate/container": ">=5.0",
-    "swiftmailer/swiftmailer": "~5.1||~6.0"
-  },
-  "autoload": {
-    "psr-4": {
-      "Clarification\\MailDrivers\\Sparkpost\\": "src"
-    }
-  }
 }

src/Transport/SparkPostTransportTrait.php

@@ -2,7 +2,7 @@
 
 namespace Clarification\MailDrivers\Sparkpost\Transport;
 
-use Swift_Mime_Message;
+use Swift_Mime_SimpleMessage;
 use GuzzleHttp\ClientInterface;
 
 trait SparkPostTransportTrait
@@ -38,7 +38,7 @@ public function __construct(ClientInterface $client, $key, $options = [])
     /**
      * {@inheritdoc}
      */
-    public function send(Swift_Mime_Message $message, &$failedRecipients = null)
+    public function send(Swift_Mime_SimpleMessage $message, &$failedRecipients = null)
     {
         $this->beforeSendPerformed($message);
 
@@ -70,10 +70,10 @@ public function send(Swift_Mime_Message $message, &$failedRecipients = null)
      *
      * Note that SparkPost still respects CC, BCC headers in raw message itself.
      *
-     * @param  Swift_Mime_Message $message
+     * @param  Swift_Mime_SimpleMessage $message
      * @return array
      */
-    protected function getRecipients(Swift_Mime_Message $message)
+    protected function getRecipients(Swift_Mime_SimpleMessage $message)
     {
         $to = [];
         if ($getTo = $message->getTo()) {