diff --git a/src/GPBMetadata/Ratelimit/Ratelimit.php b/src/GPBMetadata/Ratelimit/Ratelimit.php
index a7afc10..1007691 100644
--- a/src/GPBMetadata/Ratelimit/Ratelimit.php
+++ b/src/GPBMetadata/Ratelimit/Ratelimit.php
@@ -47,7 +47,7 @@ public static function initOnce() {
             "696d6974526571756573741a242e70622e6c7966742e726174656c696d69" .
             "742e526174654c696d6974526573706f6e73652200420e5a09726174656c" .
             "696d6974800101620670726f746f33"
-        ));
+        ), true);
 
         static::$is_initialized = true;
     }
diff --git a/src/Pb/Lyft/Ratelimit/RateLimit.php b/src/Pb/Lyft/Ratelimit/RateLimit.php
index 1fdb98a..dd5437e 100644
--- a/src/Pb/Lyft/Ratelimit/RateLimit.php
+++ b/src/Pb/Lyft/Ratelimit/RateLimit.php
@@ -7,6 +7,7 @@
 use Google\Protobuf\Internal\GPBType;
 use Google\Protobuf\Internal\RepeatedField;
 use Google\Protobuf\Internal\GPBUtil;
+use Google\Protobuf\Internal\GPBWrapperUtils;
 
 /**
  * Defines an actual rate limit in terms of requests per unit of time and the unit itself.
diff --git a/src/Pb/Lyft/Ratelimit/RateLimit/Unit.php b/src/Pb/Lyft/Ratelimit/RateLimit/Unit.php
index 7d003cd..a386192 100644
--- a/src/Pb/Lyft/Ratelimit/RateLimit/Unit.php
+++ b/src/Pb/Lyft/Ratelimit/RateLimit/Unit.php
@@ -4,6 +4,8 @@
 
 namespace Pb\Lyft\Ratelimit\RateLimit;
 
+use UnexpectedValueException;
+
 /**
  * Protobuf type <code>pb.lyft.ratelimit.RateLimit.Unit</code>
  */
@@ -29,6 +31,34 @@ class Unit
      * Generated from protobuf enum <code>DAY = 4;</code>
      */
     const DAY = 4;
+
+    private static $valueToName = [
+        self::UNKNOWN => 'UNKNOWN',
+        self::SECOND => 'SECOND',
+        self::MINUTE => 'MINUTE',
+        self::HOUR => 'HOUR',
+        self::DAY => 'DAY',
+    ];
+
+    public static function name($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.
diff --git a/src/Pb/Lyft/Ratelimit/RateLimitDescriptor.php b/src/Pb/Lyft/Ratelimit/RateLimitDescriptor.php
index 3a1080e..3ff18d9 100644
--- a/src/Pb/Lyft/Ratelimit/RateLimitDescriptor.php
+++ b/src/Pb/Lyft/Ratelimit/RateLimitDescriptor.php
@@ -7,6 +7,7 @@
 use Google\Protobuf\Internal\GPBType;
 use Google\Protobuf\Internal\RepeatedField;
 use Google\Protobuf\Internal\GPBUtil;
+use Google\Protobuf\Internal\GPBWrapperUtils;
 
 /**
  * A RateLimitDescriptor is a list of hierarchical entries that are used by the service to
diff --git a/src/Pb/Lyft/Ratelimit/RateLimitDescriptor/Entry.php b/src/Pb/Lyft/Ratelimit/RateLimitDescriptor/Entry.php
index 344cb62..ca41c7a 100644
--- a/src/Pb/Lyft/Ratelimit/RateLimitDescriptor/Entry.php
+++ b/src/Pb/Lyft/Ratelimit/RateLimitDescriptor/Entry.php
@@ -7,6 +7,7 @@
 use Google\Protobuf\Internal\GPBType;
 use Google\Protobuf\Internal\RepeatedField;
 use Google\Protobuf\Internal\GPBUtil;
+use Google\Protobuf\Internal\GPBWrapperUtils;
 
 /**
  * Generated from protobuf message <code>pb.lyft.ratelimit.RateLimitDescriptor.Entry</code>
diff --git a/src/Pb/Lyft/Ratelimit/RateLimitRequest.php b/src/Pb/Lyft/Ratelimit/RateLimitRequest.php
index c5d85f9..215f8db 100644
--- a/src/Pb/Lyft/Ratelimit/RateLimitRequest.php
+++ b/src/Pb/Lyft/Ratelimit/RateLimitRequest.php
@@ -7,6 +7,7 @@
 use Google\Protobuf\Internal\GPBType;
 use Google\Protobuf\Internal\RepeatedField;
 use Google\Protobuf\Internal\GPBUtil;
+use Google\Protobuf\Internal\GPBWrapperUtils;
 
 /**
  * Main message for a rate limit request. The rate limit service is designed to be fully generic
diff --git a/src/Pb/Lyft/Ratelimit/RateLimitResponse.php b/src/Pb/Lyft/Ratelimit/RateLimitResponse.php
index 3771da7..2b89b16 100644
--- a/src/Pb/Lyft/Ratelimit/RateLimitResponse.php
+++ b/src/Pb/Lyft/Ratelimit/RateLimitResponse.php
@@ -7,6 +7,7 @@
 use Google\Protobuf\Internal\GPBType;
 use Google\Protobuf\Internal\RepeatedField;
 use Google\Protobuf\Internal\GPBUtil;
+use Google\Protobuf\Internal\GPBWrapperUtils;
 
 /**
  * A response from a ShouldRateLimit call.
diff --git a/src/Pb/Lyft/Ratelimit/RateLimitResponse/Code.php b/src/Pb/Lyft/Ratelimit/RateLimitResponse/Code.php
index 251dc17..e2c3546 100644
--- a/src/Pb/Lyft/Ratelimit/RateLimitResponse/Code.php
+++ b/src/Pb/Lyft/Ratelimit/RateLimitResponse/Code.php
@@ -4,6 +4,8 @@
 
 namespace Pb\Lyft\Ratelimit\RateLimitResponse;
 
+use UnexpectedValueException;
+
 /**
  * Protobuf type <code>pb.lyft.ratelimit.RateLimitResponse.Code</code>
  */
@@ -21,6 +23,32 @@ class Code
      * Generated from protobuf enum <code>OVER_LIMIT = 2;</code>
      */
     const OVER_LIMIT = 2;
+
+    private static $valueToName = [
+        self::UNKNOWN => 'UNKNOWN',
+        self::OK => 'OK',
+        self::OVER_LIMIT => 'OVER_LIMIT',
+    ];
+
+    public static function name($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.
diff --git a/src/Pb/Lyft/Ratelimit/RateLimitResponse/DescriptorStatus.php b/src/Pb/Lyft/Ratelimit/RateLimitResponse/DescriptorStatus.php
index 234a8c8..ba58772 100644
--- a/src/Pb/Lyft/Ratelimit/RateLimitResponse/DescriptorStatus.php
+++ b/src/Pb/Lyft/Ratelimit/RateLimitResponse/DescriptorStatus.php
@@ -7,6 +7,7 @@
 use Google\Protobuf\Internal\GPBType;
 use Google\Protobuf\Internal\RepeatedField;
 use Google\Protobuf\Internal\GPBUtil;
+use Google\Protobuf\Internal\GPBWrapperUtils;
 
 /**
  * Generated from protobuf message <code>pb.lyft.ratelimit.RateLimitResponse.DescriptorStatus</code>