diff --git a/src/Adapter/Guzzle.php b/src/Adapter/Guzzle.php
index 205ff84..bdbddcd 100644
--- a/src/Adapter/Guzzle.php
+++ b/src/Adapter/Guzzle.php
@@ -67,13 +67,11 @@ class Guzzle implements Adapter
      */
     public function put(String $uri, array $headers = [], array $body = []): ResponseInterface
     {
-        $jsonBody = json_encode($body);
-
         $response = $this->client->put(
             $uri,
             [
                 'headers' => $headers,
-                'json' => $jsonBody
+                'json' => $body
             ]
         );
 
@@ -86,13 +84,11 @@ class Guzzle implements Adapter
      */
     public function patch(String $uri, array $headers = [], array $body = []): ResponseInterface
     {
-        $jsonBody = json_encode($body);
-
         $response = $this->client->patch(
             $uri,
             [
                 'headers' => $headers,
-                'json' => $jsonBody
+                'json' => $body
             ]
         );
 
diff --git a/src/Configurations/PageRulesActions.php b/src/Configurations/PageRulesActions.php
index de28b45..cdb03c8 100644
--- a/src/Configurations/PageRulesActions.php
+++ b/src/Configurations/PageRulesActions.php
@@ -40,7 +40,7 @@ class PageRulesActions implements Configurations
         ]);
     }
 
-    public function setBypassCacheOnCookie(bool $value)
+    public function setBypassCacheOnCookie(string $value)
     {
         if (preg_match('/^([a-zA-Z0-9\.=|_*-]+)$/i', $value) < 1) {
             throw new ConfigurationsException("Invalid cookie string.");
@@ -76,7 +76,7 @@ class PageRulesActions implements Configurations
         ]);
     }
 
-    public function setCacheOnCookie(bool $value)
+    public function setCacheOnCookie(string $value)
     {
         if (preg_match('/^([a-zA-Z0-9\.=|_*-]+)$/i', $value) < 1) {
             throw new ConfigurationsException("Invalid cookie string.");
diff --git a/src/Endpoints/Zones.php b/src/Endpoints/Zones.php
index 6a63f92..da9ddfe 100644
--- a/src/Endpoints/Zones.php
+++ b/src/Endpoints/Zones.php
@@ -119,9 +119,9 @@ class Zones implements API
         return false;
     }
 
-    public function cachePurge(string $zoneID, array $files = [], array $tags = []): bool
+    public function cachePurge(string $zoneID, array $files = null, array $tags = null): bool
     {
-        if (empty($files) && empty($tags)) {
+        if (is_null($files) && is_null($tags)) {
             throw new EndpointException("No files or tags to purge.");
         }
 
diff --git a/tests/Adapter/GuzzleTest.php b/tests/Adapter/GuzzleTest.php
index a5e16e0..ba4d58e 100644
--- a/tests/Adapter/GuzzleTest.php
+++ b/tests/Adapter/GuzzleTest.php
@@ -58,7 +58,7 @@ class GuzzleTest extends TestCase
         $this->assertEquals("application/json", $headers["Content-Type"][0]);
 
         $body = json_decode($response->getBody());
-        $this->assertEquals("Testing a PUT request.", json_decode($body->json)->{"X-Put-Test"});
+        $this->assertEquals("Testing a PUT request.", $body->json->{"X-Put-Test"});
     }
 
     public function testPatch()
@@ -73,7 +73,7 @@ class GuzzleTest extends TestCase
         $this->assertEquals("application/json", $headers["Content-Type"][0]);
 
         $body = json_decode($response->getBody());
-        $this->assertEquals("Testing a PATCH request.", json_decode($body->json)->{"X-Patch-Test"});
+        $this->assertEquals("Testing a PATCH request.", $body->json->{"X-Patch-Test"});
     }
 
     public function testDelete()