diff --git a/extension.neon b/extension.neon
index 9b0c264c..272f1343 100644
--- a/extension.neon
+++ b/extension.neon
@@ -7,6 +7,13 @@ parameters:
 		- stubs/ChoiceLoaderInterface.stub
 		- stubs/Constraint.stub
 		- stubs/ContainerBuilder.stub
+		- stubs/ContextAwareDecoderInterface.stub
+		- stubs/ContextAwareDenormalizerInterface.stub
+		- stubs/ContextAwareNormalizerInterface.stub
+		- stubs/DecoderInterface.stub
+		- stubs/DenormalizableInterface.stub
+		- stubs/DenormalizerInterface.stub
+		- stubs/EncoderInterface.stub
 		- stubs/EventSubscriberInterface.stub
 		- stubs/ExtensionInterface.stub
 		- stubs/FormBuilderInterface.stub
@@ -15,6 +22,8 @@ parameters:
 		- stubs/FormTypeInterface.stub
 		- stubs/FormView.stub
 		- stubs/HeaderBag.stub
+		- stubs/NormalizableInterface.stub
+		- stubs/NormalizerInterface.stub
 		- stubs/Process.stub
 		- stubs/Session.stub
 
diff --git a/stubs/ContextAwareDecoderInterface.stub b/stubs/ContextAwareDecoderInterface.stub
new file mode 100644
index 00000000..39e12d2f
--- /dev/null
+++ b/stubs/ContextAwareDecoderInterface.stub
@@ -0,0 +1,13 @@
+<?php
+
+namespace Symfony\Component\Serializer\Encoder;
+
+interface ContextAwareDecoderInterface extends DecoderInterface
+{
+    /**
+     * @param string $format
+     * @param array<mixed> $context
+     * @return bool
+     */
+    public function supportsDecoding($format, array $context = []);
+}
diff --git a/stubs/ContextAwareDenormalizerInterface.stub b/stubs/ContextAwareDenormalizerInterface.stub
new file mode 100644
index 00000000..4c3bdbc8
--- /dev/null
+++ b/stubs/ContextAwareDenormalizerInterface.stub
@@ -0,0 +1,14 @@
+<?php
+
+namespace Symfony\Component\Serializer\Normalizer;
+
+interface ContextAwareDenormalizerInterface extends DenormalizerInterface
+{
+    /**
+     * @param mixed $data
+     * @param string $format
+     * @param array<mixed> $context
+     * @return bool
+     */
+    public function supportsDenormalization($data, $type, $format = null, array $context = []);
+}
diff --git a/stubs/ContextAwareNormalizerInterface.stub b/stubs/ContextAwareNormalizerInterface.stub
new file mode 100644
index 00000000..282354a8
--- /dev/null
+++ b/stubs/ContextAwareNormalizerInterface.stub
@@ -0,0 +1,14 @@
+<?php
+
+namespace Symfony\Component\Serializer\Normalizer;
+
+interface ContextAwareNormalizerInterface extends NormalizerInterface
+{
+    /**
+     * @param mixed $data
+     * @param string $format
+     * @param array<mixed> $context
+     * @return bool
+     */
+    public function supportsNormalization($data, $format = null, array $context = []);
+}
diff --git a/stubs/DecoderInterface.stub b/stubs/DecoderInterface.stub
new file mode 100644
index 00000000..715dadc4
--- /dev/null
+++ b/stubs/DecoderInterface.stub
@@ -0,0 +1,22 @@
+<?php
+
+namespace Symfony\Component\Serializer\Encoder;
+
+use Symfony\Component\Serializer\Exception\UnexpectedValueException;
+
+interface DecoderInterface
+{
+    /**
+     * @param string $data
+     * @param string $format
+     * @param array<mixed> $context
+     * @return mixed
+     */
+    public function decode($data, $format, array $context = []);
+
+    /**
+     * @param string $format Format name
+     * @return bool
+     */
+    public function supportsDecoding($format);
+}
diff --git a/stubs/DenormalizableInterface.stub b/stubs/DenormalizableInterface.stub
new file mode 100644
index 00000000..17d6b118
--- /dev/null
+++ b/stubs/DenormalizableInterface.stub
@@ -0,0 +1,16 @@
+<?php
+
+namespace Symfony\Component\Serializer\Normalizer;
+
+interface DenormalizableInterface
+{
+    /**
+     * @param DenormalizerInterface $denormalizer
+     * @param array<mixed>|string|int|float|bool $data
+     * @param string|null $format
+     * @param array<mixed> $context
+     *
+     * @return object|object[]
+     */
+    public function denormalize($denormalizer, $data, $format = null, array $context = []);
+}
diff --git a/stubs/DenormalizerInterface.stub b/stubs/DenormalizerInterface.stub
new file mode 100644
index 00000000..86ca8bec
--- /dev/null
+++ b/stubs/DenormalizerInterface.stub
@@ -0,0 +1,23 @@
+<?php
+
+namespace Symfony\Component\Serializer\Normalizer;
+
+interface DenormalizerInterface
+{
+    /**
+     * @param mixed $data
+     * @param string $type
+     * @param string $format
+     * @param array<mixed> $context
+     * @return object|array<mixed>
+     */
+    public function denormalize($data, $type, $format = null, array $context = []);
+
+    /**
+     * @param mixed $data
+     * @param string $type
+     * @param string $format
+     * @return bool
+     */
+    public function supportsDenormalization($data, $type, $format = null);
+}
diff --git a/stubs/EncoderInterface.stub b/stubs/EncoderInterface.stub
new file mode 100644
index 00000000..a3092757
--- /dev/null
+++ b/stubs/EncoderInterface.stub
@@ -0,0 +1,20 @@
+<?php
+
+namespace Symfony\Component\Serializer\Encoder;
+
+interface EncoderInterface
+{
+    /**
+     * @param mixed $data
+     * @param string $format
+     * @param array<mixed> $context
+     * @return string|int|float|bool
+     */
+    public function encode($data, $format, array $context = []);
+
+    /**
+     * @param string $format Format name
+     * @return bool
+     */
+    public function supportsEncoding($format);
+}
diff --git a/stubs/NormalizableInterface.stub b/stubs/NormalizableInterface.stub
new file mode 100644
index 00000000..c7958c55
--- /dev/null
+++ b/stubs/NormalizableInterface.stub
@@ -0,0 +1,14 @@
+<?php
+
+namespace Symfony\Component\Serializer\Normalizer;
+
+interface NormalizableInterface
+{
+    /**
+     * @param NormalizerInterface $normalizer
+     * @param string|null $format
+     * @param array<mixed> $context
+     * @return array<mixed>|string|int|float|bool
+     */
+    public function normalize(NormalizerInterface $normalizer, $format = null, array $context = []);
+}
diff --git a/stubs/NormalizerInterface.stub b/stubs/NormalizerInterface.stub
new file mode 100644
index 00000000..907e296e
--- /dev/null
+++ b/stubs/NormalizerInterface.stub
@@ -0,0 +1,14 @@
+<?php
+
+namespace Symfony\Component\Serializer\Normalizer;
+
+interface NormalizerInterface
+{
+    /**
+     * @param mixed $object
+     * @param string $format
+     * @param array<mixed> $context
+     * @return array<mixed>|string|int|float|bool|null
+     */
+    public function normalize($object, $format = null, array $context = []);
+}