diff --git a/src/Clients/CloudWatchLogsClient.php b/src/Clients/CloudWatchLogsClient.php
index ed69678..e095cf0 100644
--- a/src/Clients/CloudWatchLogsClient.php
+++ b/src/Clients/CloudWatchLogsClient.php
@@ -7,6 +7,4 @@
 
 use Aws\CloudWatchLogs\CloudWatchLogsClient as BaseClient;
 
-class CloudWatchLogsClient extends BaseClient
-{
-}
+class CloudWatchLogsClient extends BaseClient {}
diff --git a/src/Clients/S3Client.php b/src/Clients/S3Client.php
index 77278d5..a2414a1 100644
--- a/src/Clients/S3Client.php
+++ b/src/Clients/S3Client.php
@@ -4,6 +4,4 @@
 
 use Aws\S3\S3Client as BaseClient;
 
-class S3Client extends BaseClient
-{
-}
+class S3Client extends BaseClient {}
diff --git a/src/Exceptions/ConfigurationException.php b/src/Exceptions/ConfigurationException.php
index 89d01c1..a76a6e7 100644
--- a/src/Exceptions/ConfigurationException.php
+++ b/src/Exceptions/ConfigurationException.php
@@ -5,6 +5,4 @@
 
 namespace Hammerstone\Sidecar\Exceptions;
 
-class ConfigurationException extends SidecarException
-{
-}
+class ConfigurationException extends SidecarException {}
diff --git a/src/Exceptions/LambdaExecutionException.php b/src/Exceptions/LambdaExecutionException.php
index c992726..1aa1620 100644
--- a/src/Exceptions/LambdaExecutionException.php
+++ b/src/Exceptions/LambdaExecutionException.php
@@ -5,6 +5,4 @@
 
 namespace Hammerstone\Sidecar\Exceptions;
 
-class LambdaExecutionException extends SidecarException
-{
-}
+class LambdaExecutionException extends SidecarException {}
diff --git a/src/Exceptions/SidecarException.php b/src/Exceptions/SidecarException.php
index 9d4c83f..0501f82 100644
--- a/src/Exceptions/SidecarException.php
+++ b/src/Exceptions/SidecarException.php
@@ -7,6 +7,4 @@
 
 use Exception;
 
-class SidecarException extends Exception
-{
-}
+class SidecarException extends Exception {}
diff --git a/src/Results/SettledResult.php b/src/Results/SettledResult.php
index 0b824b1..fddc671 100644
--- a/src/Results/SettledResult.php
+++ b/src/Results/SettledResult.php
@@ -98,7 +98,7 @@ public function toResponse($request)
      *
      * @throws Exception
      */
-    public function throw(?int $numberOfBacktraces)
+    public function throw(?int $numberOfBacktraces = null)
     {
         if (!$this->isError()) {
             return $this;