Ajout du FR

Ajout du FR + correction du "functions.php"

vendor/guzzlehttp/guzzle/src/Message/AppliesHeadersInterface.php

@@ -0,0 +1,24 @@
+<?php
+namespace GuzzleHttp\Message;
+
+/**
+ * Applies headers to a request.
+ *
+ * This interface can be used with Guzzle streams to apply body specific
+ * headers to a request during the PREPARE_REQUEST priority of the before event
+ *
+ * NOTE: a body that implements this interface will prevent a default
+ * content-type from being added to a request during the before event. If you
+ * want a default content-type to be added, then it will need to be done
+ * manually (e.g., using {@see GuzzleHttp\Mimetypes}).
+ */
+interface AppliesHeadersInterface
+{
+    /**
+     * Apply headers to a request appropriate for the current state of the
+     * object.
+     *
+     * @param RequestInterface $request Request
+     */
+    public function applyRequestHeaders(RequestInterface $request);
+}