First prototype
diff --git a/vendor/google/protobuf/src/Google/Protobuf/NullValue.php b/vendor/google/protobuf/src/Google/Protobuf/NullValue.php
new file mode 100644
index 0000000..a72cbb2
--- /dev/null
+++ b/vendor/google/protobuf/src/Google/Protobuf/NullValue.php
@@ -0,0 +1,48 @@
+<?php
+# Generated by the protocol buffer compiler. DO NOT EDIT!
+# source: google/protobuf/struct.proto
+
+namespace Google\Protobuf;
+
+use UnexpectedValueException;
+
+/**
+ * `NullValue` is a singleton enumeration to represent the null value for the
+ * `Value` type union.
+ * The JSON representation for `NullValue` is JSON `null`.
+ *
+ * Protobuf type <code>google.protobuf.NullValue</code>
+ */
+class NullValue
+{
+ /**
+ * Null value.
+ *
+ * Generated from protobuf enum <code>NULL_VALUE = 0;</code>
+ */
+ const NULL_VALUE = 0;
+
+ private static $valueToName = [
+ self::NULL_VALUE => 'NULL_VALUE',
+ ];
+
+ public static function name($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);
+ }
+}
+