first commit

libraries/vendor/web-token/jwt-signature/Serializer/Serializer.php

@@ -0,0 +1,18 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Jose\Component\Signature\Serializer;
+
+use function array_key_exists;
+
+abstract class Serializer implements JWSSerializer
+{
+    /**
+     * @param array<string, mixed> $protectedHeader
+     */
+    protected function isPayloadEncoded(array $protectedHeader): bool
+    {
+        return ! array_key_exists('b64', $protectedHeader) || $protectedHeader['b64'] === true;
+    }
+}