First commit

app/Common/extend/alibabacloud/client/src/Signature/SignatureInterface.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace AlibabaCloud\Client\Signature;
+
+/**
+ * Interface used to provide interchangeable strategies for requests
+ *
+ * @package   AlibabaCloud\Signature
+ */
+interface SignatureInterface
+{
+
+    /**
+     * @return string
+     */
+    public function getMethod();
+
+    /**
+     * @return string
+     */
+    public function getVersion();
+
+    /**
+     * @param string $string
+     * @param string $accessKeySecret
+     *
+     * @return string
+     */
+    public function sign($string, $accessKeySecret);
+
+    /**
+     * @return string
+     */
+    public function getType();
+}