--- /dev/null
+<?php
+
+namespace Drupal\Component\Serialization;
+
+/**
+ * Defines an interface for serialization formats.
+ */
+interface SerializationInterface {
+
+ /**
+ * Encodes data into the serialization format.
+ *
+ * @param mixed $data
+ * The data to encode.
+ *
+ * @return string
+ * The encoded data.
+ */
+ public static function encode($data);
+
+ /**
+ * Decodes data from the serialization format.
+ *
+ * @param string $raw
+ * The raw data string to decode.
+ *
+ * @return mixed
+ * The decoded data.
+ */
+ public static function decode($raw);
+
+ /**
+ * Gets the file extension for this serialization format.
+ *
+ * @return string
+ * The file extension, without leading dot.
+ */
+ public static function getFileExtension();
+
+}