1 files changed, 22 insertions, 0 deletions
diff --git a/inc/mailgun/php-http/message/src/Authentication.php b/inc/mailgun/php-http/message/src/Authentication.php
new file mode 100644
index 0000000..b50366f
--- /dev/null
+++ b/inc/mailgun/php-http/message/src/Authentication.php
@@ -0,0 +1,22 @@
+<?php
+
+namespace Http\Message;
+
+use Psr\Http\Message\RequestInterface;
+
+/**
+ * Authenticate a PSR-7 Request.
+ *
+ * @author Márk Sági-Kazár <mark.sagikazar@gmail.com>
+ */
+interface Authentication
+{
+    /**
+     * Authenticates a request.
+     *
+     * @param RequestInterface $request
+     *
+     * @return RequestInterface
+     */
+    public function authenticate(RequestInterface $request);
+}