diff --git a/vendor/google/protobuf/src/Google/Protobuf/Internal/FieldDescriptorProto/Label.php b/vendor/google/protobuf/src/Google/Protobuf/Internal/FieldDescriptorProto/Label.php
new file mode 100644
index 0000000..a54b228
--- /dev/null
+++ b/vendor/google/protobuf/src/Google/Protobuf/Internal/FieldDescriptorProto/Label.php
@@ -0,0 +1,58 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/protobuf/descriptor.proto
+
+namespace Google\Protobuf\Internal\FieldDescriptorProto;
+
+use UnexpectedValueException;
+
+/**
+ * Protobuf type <code>google.protobuf.FieldDescriptorProto.Label</code>
+ */
+class Label
+{
+    /**
+     * 0 is reserved for errors
+     *
+     * Generated from protobuf enum <code>LABEL_OPTIONAL = 1;</code>
+     */
+    const LABEL_OPTIONAL = 1;
+    /**
+     * Generated from protobuf enum <code>LABEL_REQUIRED = 2;</code>
+     */
+    const LABEL_REQUIRED = 2;
+    /**
+     * Generated from protobuf enum <code>LABEL_REPEATED = 3;</code>
+     */
+    const LABEL_REPEATED = 3;
+
+    private static $valueToName = [
+        self::LABEL_OPTIONAL => 'LABEL_OPTIONAL',
+        self::LABEL_REQUIRED => 'LABEL_REQUIRED',
+        self::LABEL_REPEATED => 'LABEL_REPEATED',
+    ];
+
+    public static function name($value)
+    {
+        if (!isset(self::$valueToName[$value])) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no name defined for value %s', __CLASS__, $value));
+        }
+        return self::$valueToName[$value];
+    }
+
+
+    public static function value($name)
+    {
+        $const = __CLASS__ . '::' . strtoupper($name);
+        if (!defined($const)) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no value defined for name %s', __CLASS__, $name));
+        }
+        return constant($const);
+    }
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(Label::class, \Google\Protobuf\Internal\FieldDescriptorProto_Label::class);
+
diff --git a/vendor/google/protobuf/src/Google/Protobuf/Internal/FieldDescriptorProto/Type.php b/vendor/google/protobuf/src/Google/Protobuf/Internal/FieldDescriptorProto/Type.php
new file mode 100644
index 0000000..6072e99
--- /dev/null
+++ b/vendor/google/protobuf/src/Google/Protobuf/Internal/FieldDescriptorProto/Type.php
@@ -0,0 +1,153 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/protobuf/descriptor.proto
+
+namespace Google\Protobuf\Internal\FieldDescriptorProto;
+
+use UnexpectedValueException;
+
+/**
+ * Protobuf type <code>google.protobuf.FieldDescriptorProto.Type</code>
+ */
+class Type
+{
+    /**
+     * 0 is reserved for errors.
+     * Order is weird for historical reasons.
+     *
+     * Generated from protobuf enum <code>TYPE_DOUBLE = 1;</code>
+     */
+    const TYPE_DOUBLE = 1;
+    /**
+     * Generated from protobuf enum <code>TYPE_FLOAT = 2;</code>
+     */
+    const TYPE_FLOAT = 2;
+    /**
+     * Not ZigZag encoded.  Negative numbers take 10 bytes.  Use TYPE_SINT64 if
+     * negative values are likely.
+     *
+     * Generated from protobuf enum <code>TYPE_INT64 = 3;</code>
+     */
+    const TYPE_INT64 = 3;
+    /**
+     * Generated from protobuf enum <code>TYPE_UINT64 = 4;</code>
+     */
+    const TYPE_UINT64 = 4;
+    /**
+     * Not ZigZag encoded.  Negative numbers take 10 bytes.  Use TYPE_SINT32 if
+     * negative values are likely.
+     *
+     * Generated from protobuf enum <code>TYPE_INT32 = 5;</code>
+     */
+    const TYPE_INT32 = 5;
+    /**
+     * Generated from protobuf enum <code>TYPE_FIXED64 = 6;</code>
+     */
+    const TYPE_FIXED64 = 6;
+    /**
+     * Generated from protobuf enum <code>TYPE_FIXED32 = 7;</code>
+     */
+    const TYPE_FIXED32 = 7;
+    /**
+     * Generated from protobuf enum <code>TYPE_BOOL = 8;</code>
+     */
+    const TYPE_BOOL = 8;
+    /**
+     * Generated from protobuf enum <code>TYPE_STRING = 9;</code>
+     */
+    const TYPE_STRING = 9;
+    /**
+     * Tag-delimited aggregate.
+     * Group type is deprecated and not supported in proto3. However, Proto3
+     * implementations should still be able to parse the group wire format and
+     * treat group fields as unknown fields.
+     *
+     * Generated from protobuf enum <code>TYPE_GROUP = 10;</code>
+     */
+    const TYPE_GROUP = 10;
+    /**
+     * Length-delimited aggregate.
+     *
+     * Generated from protobuf enum <code>TYPE_MESSAGE = 11;</code>
+     */
+    const TYPE_MESSAGE = 11;
+    /**
+     * New in version 2.
+     *
+     * Generated from protobuf enum <code>TYPE_BYTES = 12;</code>
+     */
+    const TYPE_BYTES = 12;
+    /**
+     * Generated from protobuf enum <code>TYPE_UINT32 = 13;</code>
+     */
+    const TYPE_UINT32 = 13;
+    /**
+     * Generated from protobuf enum <code>TYPE_ENUM = 14;</code>
+     */
+    const TYPE_ENUM = 14;
+    /**
+     * Generated from protobuf enum <code>TYPE_SFIXED32 = 15;</code>
+     */
+    const TYPE_SFIXED32 = 15;
+    /**
+     * Generated from protobuf enum <code>TYPE_SFIXED64 = 16;</code>
+     */
+    const TYPE_SFIXED64 = 16;
+    /**
+     * Uses ZigZag encoding.
+     *
+     * Generated from protobuf enum <code>TYPE_SINT32 = 17;</code>
+     */
+    const TYPE_SINT32 = 17;
+    /**
+     * Uses ZigZag encoding.
+     *
+     * Generated from protobuf enum <code>TYPE_SINT64 = 18;</code>
+     */
+    const TYPE_SINT64 = 18;
+
+    private static $valueToName = [
+        self::TYPE_DOUBLE => 'TYPE_DOUBLE',
+        self::TYPE_FLOAT => 'TYPE_FLOAT',
+        self::TYPE_INT64 => 'TYPE_INT64',
+        self::TYPE_UINT64 => 'TYPE_UINT64',
+        self::TYPE_INT32 => 'TYPE_INT32',
+        self::TYPE_FIXED64 => 'TYPE_FIXED64',
+        self::TYPE_FIXED32 => 'TYPE_FIXED32',
+        self::TYPE_BOOL => 'TYPE_BOOL',
+        self::TYPE_STRING => 'TYPE_STRING',
+        self::TYPE_GROUP => 'TYPE_GROUP',
+        self::TYPE_MESSAGE => 'TYPE_MESSAGE',
+        self::TYPE_BYTES => 'TYPE_BYTES',
+        self::TYPE_UINT32 => 'TYPE_UINT32',
+        self::TYPE_ENUM => 'TYPE_ENUM',
+        self::TYPE_SFIXED32 => 'TYPE_SFIXED32',
+        self::TYPE_SFIXED64 => 'TYPE_SFIXED64',
+        self::TYPE_SINT32 => 'TYPE_SINT32',
+        self::TYPE_SINT64 => 'TYPE_SINT64',
+    ];
+
+    public static function name($value)
+    {
+        if (!isset(self::$valueToName[$value])) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no name defined for value %s', __CLASS__, $value));
+        }
+        return self::$valueToName[$value];
+    }
+
+
+    public static function value($name)
+    {
+        $const = __CLASS__ . '::' . strtoupper($name);
+        if (!defined($const)) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no value defined for name %s', __CLASS__, $name));
+        }
+        return constant($const);
+    }
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(Type::class, \Google\Protobuf\Internal\FieldDescriptorProto_Type::class);
+