diff --git a/vendor/composer/installed.json b/vendor/composer/installed.json
new file mode 100644
index 0000000..0ea222a
--- /dev/null
+++ b/vendor/composer/installed.json
@@ -0,0 +1,45 @@
+[
+    {
+        "name": "google/protobuf",
+        "version": "v3.11.2",
+        "version_normalized": "3.11.2.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/protocolbuffers/protobuf-php.git",
+            "reference": "0864882396746542ead01fc002e1644b9490dbe8"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/protocolbuffers/protobuf-php/zipball/0864882396746542ead01fc002e1644b9490dbe8",
+            "reference": "0864882396746542ead01fc002e1644b9490dbe8",
+            "shasum": ""
+        },
+        "require": {
+            "php": ">=5.5.0"
+        },
+        "require-dev": {
+            "phpunit/phpunit": ">=4.8.0"
+        },
+        "suggest": {
+            "ext-bcmath": "Need to support JSON deserialization"
+        },
+        "time": "2019-12-14T00:45:36+00:00",
+        "type": "library",
+        "installation-source": "dist",
+        "autoload": {
+            "psr-4": {
+                "Google\\Protobuf\\": "src/Google/Protobuf",
+                "GPBMetadata\\Google\\Protobuf\\": "src/GPBMetadata/Google/Protobuf"
+            }
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "BSD-3-Clause"
+        ],
+        "description": "proto library for PHP",
+        "homepage": "https://developers.google.com/protocol-buffers/",
+        "keywords": [
+            "proto"
+        ]
+    }
+]