First prototype
diff --git a/vendor/google/protobuf/src/Google/Protobuf/GPBEmpty.php b/vendor/google/protobuf/src/Google/Protobuf/GPBEmpty.php
new file mode 100644
index 0000000..2de9c3b
--- /dev/null
+++ b/vendor/google/protobuf/src/Google/Protobuf/GPBEmpty.php
@@ -0,0 +1,39 @@
+<?php
+# Generated by the protocol buffer compiler. DO NOT EDIT!
+# source: google/protobuf/empty.proto
+
+namespace Google\Protobuf;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A generic empty message that you can re-use to avoid defining duplicated
+ * empty messages in your APIs. A typical example is to use it as the request
+ * or the response type of an API method. For instance:
+ * service Foo {
+ * rpc Bar(google.protobuf.Empty) returns (google.protobuf.Empty);
+ * }
+ * The JSON representation for `Empty` is empty JSON object `{}`.
+ *
+ * Generated from protobuf message <code>google.protobuf.Empty</code>
+ */
+class GPBEmpty extends \Google\Protobuf\Internal\Message
+{
+
+ /**
+ * Constructor.
+ *
+ * @param array $data {
+ * Optional. Data for populating the Message object.
+ *
+ * }
+ */
+ public function __construct($data = NULL) {
+ \GPBMetadata\Google\Protobuf\GPBEmpty::initOnce();
+ parent::__construct($data);
+ }
+
+}
+