foo.diff

diff --git a/examples/helloworld/helloworld/helloworld.pb.go b/examples/helloworld/helloworld/helloworld.pb.go
index c8c8942..f373533 100644
--- a/examples/helloworld/helloworld/helloworld.pb.go
+++ b/examples/helloworld/helloworld/helloworld.pb.go
@@ -72,6 +72,7 @@ const _ = grpc.SupportPackageIsVersion4
 type GreeterClient interface {
 	// Sends a greeting
 	SayHello(ctx context.Context, in *HelloRequest, opts ...grpc.CallOption) (*HelloReply, error)
+	SayHelloAgain(ctx context.Context, in *HelloRequest, opts ...grpc.CallOption) (*HelloReply, error)
 }
 
 type greeterClient struct {
@@ -91,11 +92,21 @@ func (c *greeterClient) SayHello(ctx context.Context, in *HelloRequest, opts ...
 	return out, nil
 }
 
+func (c *greeterClient) SayHelloAgain(ctx context.Context, in *HelloRequest, opts ...grpc.CallOption) (*HelloReply, error) {
+	out := new(HelloReply)
+	err := grpc.Invoke(ctx, "/helloworld.Greeter/SayHelloAgain", in, out, c.cc, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 // Server API for Greeter service
 
 type GreeterServer interface {
 	// Sends a greeting
 	SayHello(context.Context, *HelloRequest) (*HelloReply, error)
+	SayHelloAgain(context.Context, *HelloRequest) (*HelloReply, error)
 }
 
 func RegisterGreeterServer(s *grpc.Server, srv GreeterServer) {
@@ -120,6 +131,24 @@ func _Greeter_SayHello_Handler(srv interface{}, ctx context.Context, dec func(in
 	return interceptor(ctx, in, info, handler)
 }
 
+func _Greeter_SayHelloAgain_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(HelloRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(GreeterServer).SayHelloAgain(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/helloworld.Greeter/SayHelloAgain",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(GreeterServer).SayHelloAgain(ctx, req.(*HelloRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 var _Greeter_serviceDesc = grpc.ServiceDesc{
 	ServiceName: "helloworld.Greeter",
 	HandlerType: (*GreeterServer)(nil),
@@ -128,6 +157,10 @@ var _Greeter_serviceDesc = grpc.ServiceDesc{
 			MethodName: "SayHello",
 			Handler:    _Greeter_SayHello_Handler,
 		},
+		{
+			MethodName: "SayHelloAgain",
+			Handler:    _Greeter_SayHelloAgain_Handler,
+		},
 	},
 	Streams:  []grpc.StreamDesc{},
 	Metadata: "helloworld.proto",
@@ -136,16 +169,17 @@ var _Greeter_serviceDesc = grpc.ServiceDesc{
 func init() { proto.RegisterFile("helloworld.proto", fileDescriptor0) }
 
 var fileDescriptor0 = []byte{
-	// 174 bytes of a gzipped FileDescriptorProto
+	// 190 bytes of a gzipped FileDescriptorProto
 	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0xe2, 0x12, 0xc8, 0x48, 0xcd, 0xc9,
 	0xc9, 0x2f, 0xcf, 0x2f, 0xca, 0x49, 0xd1, 0x2b, 0x28, 0xca, 0x2f, 0xc9, 0x17, 0xe2, 0x42, 0x88,
 	0x28, 0x29, 0x71, 0xf1, 0x78, 0x80, 0x78, 0x41, 0xa9, 0x85, 0xa5, 0xa9, 0xc5, 0x25, 0x42, 0x42,
 	0x5c, 0x2c, 0x79, 0x89, 0xb9, 0xa9, 0x12, 0x8c, 0x0a, 0x8c, 0x1a, 0x9c, 0x41, 0x60, 0xb6, 0x92,
 	0x1a, 0x17, 0x17, 0x54, 0x4d, 0x41, 0x4e, 0xa5, 0x90, 0x04, 0x17, 0x7b, 0x6e, 0x6a, 0x71, 0x71,
-	0x62, 0x3a, 0x4c, 0x11, 0x8c, 0x6b, 0xe4, 0xc9, 0xc5, 0xee, 0x5e, 0x94, 0x9a, 0x5a, 0x92, 0x5a,
-	0x24, 0x64, 0xc7, 0xc5, 0x11, 0x9c, 0x58, 0x09, 0xd6, 0x25, 0x24, 0xa1, 0x87, 0xe4, 0x02, 0x64,
-	0xcb, 0xa4, 0xc4, 0xb0, 0xc8, 0x00, 0xad, 0x50, 0x62, 0x70, 0x32, 0xe0, 0x92, 0xce, 0xcc, 0xd7,
-	0x4b, 0x2f, 0x2a, 0x48, 0xd6, 0x4b, 0xad, 0x48, 0xcc, 0x2d, 0xc8, 0x49, 0x2d, 0x46, 0x52, 0xeb,
-	0xc4, 0x0f, 0x56, 0x1c, 0x0e, 0x62, 0x07, 0x80, 0xbc, 0x14, 0xc0, 0x98, 0xc4, 0x06, 0xf6, 0x9b,
-	0x31, 0x20, 0x00, 0x00, 0xff, 0xff, 0x0f, 0xb7, 0xcd, 0xf2, 0xef, 0x00, 0x00, 0x00,
+	0x62, 0x3a, 0x4c, 0x11, 0x8c, 0x6b, 0xd4, 0xc7, 0xc8, 0xc5, 0xee, 0x5e, 0x94, 0x9a, 0x5a, 0x92,
+	0x5a, 0x24, 0x64, 0xc7, 0xc5, 0x11, 0x9c, 0x58, 0x09, 0xd6, 0x26, 0x24, 0xa1, 0x87, 0xe4, 0x04,
+	0x64, 0xdb, 0xa4, 0xc4, 0xb0, 0xc8, 0x14, 0xe4, 0x54, 0x2a, 0x31, 0x08, 0x39, 0x73, 0xf1, 0xc2,
+	0xf4, 0x3b, 0xa6, 0x27, 0x66, 0xe6, 0x91, 0x63, 0x88, 0x93, 0x01, 0x97, 0x74, 0x66, 0xbe, 0x5e,
+	0x7a, 0x51, 0x41, 0xb2, 0x5e, 0x6a, 0x45, 0x62, 0x6e, 0x41, 0x4e, 0x6a, 0x31, 0x92, 0x5a, 0x27,
+	0x7e, 0xb0, 0xe2, 0x70, 0x10, 0x3b, 0x00, 0x14, 0x30, 0x01, 0x8c, 0x49, 0x6c, 0xe0, 0x10, 0x32,
+	0x06, 0x04, 0x00, 0x00, 0xff, 0xff, 0x7a, 0xea, 0x40, 0x66, 0x35, 0x01, 0x00, 0x00,
 }
diff --git a/examples/helloworld/helloworld/helloworld.proto b/examples/helloworld/helloworld/helloworld.proto
index c3ddd4a..22fbcba 100644
--- a/examples/helloworld/helloworld/helloworld.proto
+++ b/examples/helloworld/helloworld/helloworld.proto
@@ -39,6 +39,8 @@ package helloworld;
 service Greeter {
   // Sends a greeting
   rpc SayHello (HelloRequest) returns (HelloReply) {}
+
+  rpc SayHelloAgain (HelloRequest) returns (HelloReply) {}
 }
 
 // The request message containing the user's name.