added predis and eseye back in.

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

@@ -0,0 +1,24 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2014-2020 Spomky-Labs
+ *
+ * This software may be modified and distributed under the terms
+ * of the MIT license.  See the LICENSE file for details.
+ */
+
+namespace Jose\Component\Signature\Serializer;
+
+use function array_key_exists;
+
+abstract class Serializer implements JWSSerializer
+{
+    protected function isPayloadEncoded(array $protectedHeader): bool
+    {
+        return !array_key_exists('b64', $protectedHeader) || true === $protectedHeader['b64'];
+    }
+}