diff --git a/vendor/github.com/coreos/etcd/etcdserver/api/v3lock/v3lockpb/v3lock.pb.go b/vendor/github.com/coreos/etcd/etcdserver/api/v3lock/v3lockpb/v3lock.pb.go
new file mode 100644
index 0000000..1ece90b
--- /dev/null
+++ b/vendor/github.com/coreos/etcd/etcdserver/api/v3lock/v3lockpb/v3lock.pb.go
@@ -0,0 +1,1179 @@
+// Code generated by protoc-gen-gogo. DO NOT EDIT.
+// source: v3lock.proto
+
+package v3lockpb
+
+import (
+	context "context"
+	fmt "fmt"
+	io "io"
+	math "math"
+	math_bits "math/bits"
+
+	etcdserverpb "github.com/coreos/etcd/etcdserver/etcdserverpb"
+	_ "github.com/gogo/protobuf/gogoproto"
+	proto "github.com/golang/protobuf/proto"
+	_ "google.golang.org/genproto/googleapis/api/annotations"
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
+)
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
+
+type LockRequest struct {
+	// name is the identifier for the distributed shared lock to be acquired.
+	Name []byte `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
+	// lease is the ID of the lease that will be attached to ownership of the
+	// lock. If the lease expires or is revoked and currently holds the lock,
+	// the lock is automatically released. Calls to Lock with the same lease will
+	// be treated as a single acquistion; locking twice with the same lease is a
+	// no-op.
+	Lease                int64    `protobuf:"varint,2,opt,name=lease,proto3" json:"lease,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *LockRequest) Reset()         { *m = LockRequest{} }
+func (m *LockRequest) String() string { return proto.CompactTextString(m) }
+func (*LockRequest) ProtoMessage()    {}
+func (*LockRequest) Descriptor() ([]byte, []int) {
+	return fileDescriptor_52389b3e2f253201, []int{0}
+}
+func (m *LockRequest) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *LockRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	if deterministic {
+		return xxx_messageInfo_LockRequest.Marshal(b, m, deterministic)
+	} else {
+		b = b[:cap(b)]
+		n, err := m.MarshalToSizedBuffer(b)
+		if err != nil {
+			return nil, err
+		}
+		return b[:n], nil
+	}
+}
+func (m *LockRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_LockRequest.Merge(m, src)
+}
+func (m *LockRequest) XXX_Size() int {
+	return m.Size()
+}
+func (m *LockRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_LockRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_LockRequest proto.InternalMessageInfo
+
+func (m *LockRequest) GetName() []byte {
+	if m != nil {
+		return m.Name
+	}
+	return nil
+}
+
+func (m *LockRequest) GetLease() int64 {
+	if m != nil {
+		return m.Lease
+	}
+	return 0
+}
+
+type LockResponse struct {
+	Header *etcdserverpb.ResponseHeader `protobuf:"bytes,1,opt,name=header,proto3" json:"header,omitempty"`
+	// key is a key that will exist on etcd for the duration that the Lock caller
+	// owns the lock. Users should not modify this key or the lock may exhibit
+	// undefined behavior.
+	Key                  []byte   `protobuf:"bytes,2,opt,name=key,proto3" json:"key,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *LockResponse) Reset()         { *m = LockResponse{} }
+func (m *LockResponse) String() string { return proto.CompactTextString(m) }
+func (*LockResponse) ProtoMessage()    {}
+func (*LockResponse) Descriptor() ([]byte, []int) {
+	return fileDescriptor_52389b3e2f253201, []int{1}
+}
+func (m *LockResponse) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *LockResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	if deterministic {
+		return xxx_messageInfo_LockResponse.Marshal(b, m, deterministic)
+	} else {
+		b = b[:cap(b)]
+		n, err := m.MarshalToSizedBuffer(b)
+		if err != nil {
+			return nil, err
+		}
+		return b[:n], nil
+	}
+}
+func (m *LockResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_LockResponse.Merge(m, src)
+}
+func (m *LockResponse) XXX_Size() int {
+	return m.Size()
+}
+func (m *LockResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_LockResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_LockResponse proto.InternalMessageInfo
+
+func (m *LockResponse) GetHeader() *etcdserverpb.ResponseHeader {
+	if m != nil {
+		return m.Header
+	}
+	return nil
+}
+
+func (m *LockResponse) GetKey() []byte {
+	if m != nil {
+		return m.Key
+	}
+	return nil
+}
+
+type UnlockRequest struct {
+	// key is the lock ownership key granted by Lock.
+	Key                  []byte   `protobuf:"bytes,1,opt,name=key,proto3" json:"key,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *UnlockRequest) Reset()         { *m = UnlockRequest{} }
+func (m *UnlockRequest) String() string { return proto.CompactTextString(m) }
+func (*UnlockRequest) ProtoMessage()    {}
+func (*UnlockRequest) Descriptor() ([]byte, []int) {
+	return fileDescriptor_52389b3e2f253201, []int{2}
+}
+func (m *UnlockRequest) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *UnlockRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	if deterministic {
+		return xxx_messageInfo_UnlockRequest.Marshal(b, m, deterministic)
+	} else {
+		b = b[:cap(b)]
+		n, err := m.MarshalToSizedBuffer(b)
+		if err != nil {
+			return nil, err
+		}
+		return b[:n], nil
+	}
+}
+func (m *UnlockRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_UnlockRequest.Merge(m, src)
+}
+func (m *UnlockRequest) XXX_Size() int {
+	return m.Size()
+}
+func (m *UnlockRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_UnlockRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_UnlockRequest proto.InternalMessageInfo
+
+func (m *UnlockRequest) GetKey() []byte {
+	if m != nil {
+		return m.Key
+	}
+	return nil
+}
+
+type UnlockResponse struct {
+	Header               *etcdserverpb.ResponseHeader `protobuf:"bytes,1,opt,name=header,proto3" json:"header,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}                     `json:"-"`
+	XXX_unrecognized     []byte                       `json:"-"`
+	XXX_sizecache        int32                        `json:"-"`
+}
+
+func (m *UnlockResponse) Reset()         { *m = UnlockResponse{} }
+func (m *UnlockResponse) String() string { return proto.CompactTextString(m) }
+func (*UnlockResponse) ProtoMessage()    {}
+func (*UnlockResponse) Descriptor() ([]byte, []int) {
+	return fileDescriptor_52389b3e2f253201, []int{3}
+}
+func (m *UnlockResponse) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *UnlockResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	if deterministic {
+		return xxx_messageInfo_UnlockResponse.Marshal(b, m, deterministic)
+	} else {
+		b = b[:cap(b)]
+		n, err := m.MarshalToSizedBuffer(b)
+		if err != nil {
+			return nil, err
+		}
+		return b[:n], nil
+	}
+}
+func (m *UnlockResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_UnlockResponse.Merge(m, src)
+}
+func (m *UnlockResponse) XXX_Size() int {
+	return m.Size()
+}
+func (m *UnlockResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_UnlockResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_UnlockResponse proto.InternalMessageInfo
+
+func (m *UnlockResponse) GetHeader() *etcdserverpb.ResponseHeader {
+	if m != nil {
+		return m.Header
+	}
+	return nil
+}
+
+func init() {
+	proto.RegisterType((*LockRequest)(nil), "v3lockpb.LockRequest")
+	proto.RegisterType((*LockResponse)(nil), "v3lockpb.LockResponse")
+	proto.RegisterType((*UnlockRequest)(nil), "v3lockpb.UnlockRequest")
+	proto.RegisterType((*UnlockResponse)(nil), "v3lockpb.UnlockResponse")
+}
+
+func init() { proto.RegisterFile("v3lock.proto", fileDescriptor_52389b3e2f253201) }
+
+var fileDescriptor_52389b3e2f253201 = []byte{
+	// 335 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0xe2, 0x29, 0x33, 0xce, 0xc9,
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+	0x4e, 0x6a, 0x62, 0x71, 0xaa, 0x04, 0x93, 0x02, 0xa3, 0x06, 0x73, 0x10, 0x84, 0xa3, 0x14, 0xc6,
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+	0x98, 0x92, 0x5a, 0x04, 0xd6, 0xcb, 0x6d, 0x24, 0xa3, 0x87, 0xec, 0x1e, 0x3d, 0x98, 0x3a, 0x0f,
+	0xb0, 0x9a, 0x20, 0xa8, 0x5a, 0x21, 0x01, 0x2e, 0xe6, 0xec, 0xd4, 0x4a, 0xb0, 0xc9, 0x3c, 0x41,
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+	0xc1, 0x50, 0x5a, 0x54, 0x0f, 0x16, 0xe6, 0x7a, 0x48, 0x81, 0x22, 0x25, 0x86, 0x2e, 0x0c, 0x31,
+	0x4d, 0x49, 0xa6, 0xe9, 0xf2, 0x93, 0xc9, 0x4c, 0x62, 0x4a, 0x82, 0xfa, 0x65, 0xc6, 0x49, 0xa9,
+	0x25, 0x89, 0xfa, 0x20, 0x45, 0x60, 0xc2, 0x8a, 0x51, 0x4b, 0x28, 0x9a, 0x8b, 0x0d, 0xe2, 0x4a,
+	0x21, 0x71, 0x84, 0x7e, 0x14, 0xaf, 0x49, 0x49, 0x60, 0x4a, 0x40, 0x8d, 0x96, 0x03, 0x1b, 0x2d,
+	0xa1, 0x24, 0x8c, 0x62, 0x74, 0x69, 0x1e, 0xd4, 0x70, 0x27, 0x81, 0x13, 0x8f, 0xe4, 0x18, 0x2f,
+	0x3c, 0x92, 0x63, 0x7c, 0xf0, 0x48, 0x8e, 0x71, 0xc6, 0x63, 0x39, 0x86, 0x24, 0x36, 0x70, 0x7c,
+	0x1a, 0x03, 0x02, 0x00, 0x00, 0xff, 0xff, 0x10, 0x82, 0x89, 0xf0, 0x45, 0x02, 0x00, 0x00,
+}
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ context.Context
+var _ grpc.ClientConn
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+const _ = grpc.SupportPackageIsVersion4
+
+// LockClient is the client API for Lock service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://godoc.org/google.golang.org/grpc#ClientConn.NewStream.
+type LockClient interface {
+	// Lock acquires a distributed shared lock on a given named lock.
+	// On success, it will return a unique key that exists so long as the
+	// lock is held by the caller. This key can be used in conjunction with
+	// transactions to safely ensure updates to etcd only occur while holding
+	// lock ownership. The lock is held until Unlock is called on the key or the
+	// lease associate with the owner expires.
+	Lock(ctx context.Context, in *LockRequest, opts ...grpc.CallOption) (*LockResponse, error)
+	// Unlock takes a key returned by Lock and releases the hold on lock. The
+	// next Lock caller waiting for the lock will then be woken up and given
+	// ownership of the lock.
+	Unlock(ctx context.Context, in *UnlockRequest, opts ...grpc.CallOption) (*UnlockResponse, error)
+}
+
+type lockClient struct {
+	cc *grpc.ClientConn
+}
+
+func NewLockClient(cc *grpc.ClientConn) LockClient {
+	return &lockClient{cc}
+}
+
+func (c *lockClient) Lock(ctx context.Context, in *LockRequest, opts ...grpc.CallOption) (*LockResponse, error) {
+	out := new(LockResponse)
+	err := c.cc.Invoke(ctx, "/v3lockpb.Lock/Lock", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *lockClient) Unlock(ctx context.Context, in *UnlockRequest, opts ...grpc.CallOption) (*UnlockResponse, error) {
+	out := new(UnlockResponse)
+	err := c.cc.Invoke(ctx, "/v3lockpb.Lock/Unlock", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// LockServer is the server API for Lock service.
+type LockServer interface {
+	// Lock acquires a distributed shared lock on a given named lock.
+	// On success, it will return a unique key that exists so long as the
+	// lock is held by the caller. This key can be used in conjunction with
+	// transactions to safely ensure updates to etcd only occur while holding
+	// lock ownership. The lock is held until Unlock is called on the key or the
+	// lease associate with the owner expires.
+	Lock(context.Context, *LockRequest) (*LockResponse, error)
+	// Unlock takes a key returned by Lock and releases the hold on lock. The
+	// next Lock caller waiting for the lock will then be woken up and given
+	// ownership of the lock.
+	Unlock(context.Context, *UnlockRequest) (*UnlockResponse, error)
+}
+
+// UnimplementedLockServer can be embedded to have forward compatible implementations.
+type UnimplementedLockServer struct {
+}
+
+func (*UnimplementedLockServer) Lock(ctx context.Context, req *LockRequest) (*LockResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Lock not implemented")
+}
+func (*UnimplementedLockServer) Unlock(ctx context.Context, req *UnlockRequest) (*UnlockResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Unlock not implemented")
+}
+
+func RegisterLockServer(s *grpc.Server, srv LockServer) {
+	s.RegisterService(&_Lock_serviceDesc, srv)
+}
+
+func _Lock_Lock_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(LockRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(LockServer).Lock(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/v3lockpb.Lock/Lock",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(LockServer).Lock(ctx, req.(*LockRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _Lock_Unlock_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(UnlockRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(LockServer).Unlock(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/v3lockpb.Lock/Unlock",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(LockServer).Unlock(ctx, req.(*UnlockRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+var _Lock_serviceDesc = grpc.ServiceDesc{
+	ServiceName: "v3lockpb.Lock",
+	HandlerType: (*LockServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "Lock",
+			Handler:    _Lock_Lock_Handler,
+		},
+		{
+			MethodName: "Unlock",
+			Handler:    _Lock_Unlock_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "v3lock.proto",
+}
+
+func (m *LockRequest) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *LockRequest) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *LockRequest) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	_ = i
+	var l int
+	_ = l
+	if m.XXX_unrecognized != nil {
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
+	}
+	if m.Lease != 0 {
+		i = encodeVarintV3Lock(dAtA, i, uint64(m.Lease))
+		i--
+		dAtA[i] = 0x10
+	}
+	if len(m.Name) > 0 {
+		i -= len(m.Name)
+		copy(dAtA[i:], m.Name)
+		i = encodeVarintV3Lock(dAtA, i, uint64(len(m.Name)))
+		i--
+		dAtA[i] = 0xa
+	}
+	return len(dAtA) - i, nil
+}
+
+func (m *LockResponse) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *LockResponse) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *LockResponse) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	_ = i
+	var l int
+	_ = l
+	if m.XXX_unrecognized != nil {
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
+	}
+	if len(m.Key) > 0 {
+		i -= len(m.Key)
+		copy(dAtA[i:], m.Key)
+		i = encodeVarintV3Lock(dAtA, i, uint64(len(m.Key)))
+		i--
+		dAtA[i] = 0x12
+	}
+	if m.Header != nil {
+		{
+			size, err := m.Header.MarshalToSizedBuffer(dAtA[:i])
+			if err != nil {
+				return 0, err
+			}
+			i -= size
+			i = encodeVarintV3Lock(dAtA, i, uint64(size))
+		}
+		i--
+		dAtA[i] = 0xa
+	}
+	return len(dAtA) - i, nil
+}
+
+func (m *UnlockRequest) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *UnlockRequest) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *UnlockRequest) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	_ = i
+	var l int
+	_ = l
+	if m.XXX_unrecognized != nil {
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
+	}
+	if len(m.Key) > 0 {
+		i -= len(m.Key)
+		copy(dAtA[i:], m.Key)
+		i = encodeVarintV3Lock(dAtA, i, uint64(len(m.Key)))
+		i--
+		dAtA[i] = 0xa
+	}
+	return len(dAtA) - i, nil
+}
+
+func (m *UnlockResponse) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *UnlockResponse) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *UnlockResponse) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	_ = i
+	var l int
+	_ = l
+	if m.XXX_unrecognized != nil {
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
+	}
+	if m.Header != nil {
+		{
+			size, err := m.Header.MarshalToSizedBuffer(dAtA[:i])
+			if err != nil {
+				return 0, err
+			}
+			i -= size
+			i = encodeVarintV3Lock(dAtA, i, uint64(size))
+		}
+		i--
+		dAtA[i] = 0xa
+	}
+	return len(dAtA) - i, nil
+}
+
+func encodeVarintV3Lock(dAtA []byte, offset int, v uint64) int {
+	offset -= sovV3Lock(v)
+	base := offset
+	for v >= 1<<7 {
+		dAtA[offset] = uint8(v&0x7f | 0x80)
+		v >>= 7
+		offset++
+	}
+	dAtA[offset] = uint8(v)
+	return base
+}
+func (m *LockRequest) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	l = len(m.Name)
+	if l > 0 {
+		n += 1 + l + sovV3Lock(uint64(l))
+	}
+	if m.Lease != 0 {
+		n += 1 + sovV3Lock(uint64(m.Lease))
+	}
+	if m.XXX_unrecognized != nil {
+		n += len(m.XXX_unrecognized)
+	}
+	return n
+}
+
+func (m *LockResponse) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	if m.Header != nil {
+		l = m.Header.Size()
+		n += 1 + l + sovV3Lock(uint64(l))
+	}
+	l = len(m.Key)
+	if l > 0 {
+		n += 1 + l + sovV3Lock(uint64(l))
+	}
+	if m.XXX_unrecognized != nil {
+		n += len(m.XXX_unrecognized)
+	}
+	return n
+}
+
+func (m *UnlockRequest) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	l = len(m.Key)
+	if l > 0 {
+		n += 1 + l + sovV3Lock(uint64(l))
+	}
+	if m.XXX_unrecognized != nil {
+		n += len(m.XXX_unrecognized)
+	}
+	return n
+}
+
+func (m *UnlockResponse) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	if m.Header != nil {
+		l = m.Header.Size()
+		n += 1 + l + sovV3Lock(uint64(l))
+	}
+	if m.XXX_unrecognized != nil {
+		n += len(m.XXX_unrecognized)
+	}
+	return n
+}
+
+func sovV3Lock(x uint64) (n int) {
+	return (math_bits.Len64(x|1) + 6) / 7
+}
+func sozV3Lock(x uint64) (n int) {
+	return sovV3Lock(uint64((x << 1) ^ uint64((int64(x) >> 63))))
+}
+func (m *LockRequest) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowV3Lock
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= uint64(b&0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: LockRequest: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: LockRequest: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Name", wireType)
+			}
+			var byteLen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowV3Lock
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				byteLen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if byteLen < 0 {
+				return ErrInvalidLengthV3Lock
+			}
+			postIndex := iNdEx + byteLen
+			if postIndex < 0 {
+				return ErrInvalidLengthV3Lock
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.Name = append(m.Name[:0], dAtA[iNdEx:postIndex]...)
+			if m.Name == nil {
+				m.Name = []byte{}
+			}
+			iNdEx = postIndex
+		case 2:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Lease", wireType)
+			}
+			m.Lease = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowV3Lock
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Lease |= int64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		default:
+			iNdEx = preIndex
+			skippy, err := skipV3Lock(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if skippy < 0 {
+				return ErrInvalidLengthV3Lock
+			}
+			if (iNdEx + skippy) < 0 {
+				return ErrInvalidLengthV3Lock
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.XXX_unrecognized = append(m.XXX_unrecognized, dAtA[iNdEx:iNdEx+skippy]...)
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
+func (m *LockResponse) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowV3Lock
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= uint64(b&0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: LockResponse: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: LockResponse: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Header", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowV3Lock
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthV3Lock
+			}
+			postIndex := iNdEx + msglen
+			if postIndex < 0 {
+				return ErrInvalidLengthV3Lock
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			if m.Header == nil {
+				m.Header = &etcdserverpb.ResponseHeader{}
+			}
+			if err := m.Header.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
+		case 2:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Key", wireType)
+			}
+			var byteLen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowV3Lock
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				byteLen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if byteLen < 0 {
+				return ErrInvalidLengthV3Lock
+			}
+			postIndex := iNdEx + byteLen
+			if postIndex < 0 {
+				return ErrInvalidLengthV3Lock
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.Key = append(m.Key[:0], dAtA[iNdEx:postIndex]...)
+			if m.Key == nil {
+				m.Key = []byte{}
+			}
+			iNdEx = postIndex
+		default:
+			iNdEx = preIndex
+			skippy, err := skipV3Lock(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if skippy < 0 {
+				return ErrInvalidLengthV3Lock
+			}
+			if (iNdEx + skippy) < 0 {
+				return ErrInvalidLengthV3Lock
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.XXX_unrecognized = append(m.XXX_unrecognized, dAtA[iNdEx:iNdEx+skippy]...)
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
+func (m *UnlockRequest) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowV3Lock
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= uint64(b&0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: UnlockRequest: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: UnlockRequest: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Key", wireType)
+			}
+			var byteLen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowV3Lock
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				byteLen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if byteLen < 0 {
+				return ErrInvalidLengthV3Lock
+			}
+			postIndex := iNdEx + byteLen
+			if postIndex < 0 {
+				return ErrInvalidLengthV3Lock
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.Key = append(m.Key[:0], dAtA[iNdEx:postIndex]...)
+			if m.Key == nil {
+				m.Key = []byte{}
+			}
+			iNdEx = postIndex
+		default:
+			iNdEx = preIndex
+			skippy, err := skipV3Lock(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if skippy < 0 {
+				return ErrInvalidLengthV3Lock
+			}
+			if (iNdEx + skippy) < 0 {
+				return ErrInvalidLengthV3Lock
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.XXX_unrecognized = append(m.XXX_unrecognized, dAtA[iNdEx:iNdEx+skippy]...)
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
+func (m *UnlockResponse) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowV3Lock
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= uint64(b&0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: UnlockResponse: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: UnlockResponse: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Header", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowV3Lock
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthV3Lock
+			}
+			postIndex := iNdEx + msglen
+			if postIndex < 0 {
+				return ErrInvalidLengthV3Lock
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			if m.Header == nil {
+				m.Header = &etcdserverpb.ResponseHeader{}
+			}
+			if err := m.Header.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
+		default:
+			iNdEx = preIndex
+			skippy, err := skipV3Lock(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if skippy < 0 {
+				return ErrInvalidLengthV3Lock
+			}
+			if (iNdEx + skippy) < 0 {
+				return ErrInvalidLengthV3Lock
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.XXX_unrecognized = append(m.XXX_unrecognized, dAtA[iNdEx:iNdEx+skippy]...)
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
+func skipV3Lock(dAtA []byte) (n int, err error) {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return 0, ErrIntOverflowV3Lock
+			}
+			if iNdEx >= l {
+				return 0, io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= (uint64(b) & 0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		wireType := int(wire & 0x7)
+		switch wireType {
+		case 0:
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return 0, ErrIntOverflowV3Lock
+				}
+				if iNdEx >= l {
+					return 0, io.ErrUnexpectedEOF
+				}
+				iNdEx++
+				if dAtA[iNdEx-1] < 0x80 {
+					break
+				}
+			}
+			return iNdEx, nil
+		case 1:
+			iNdEx += 8
+			return iNdEx, nil
+		case 2:
+			var length int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return 0, ErrIntOverflowV3Lock
+				}
+				if iNdEx >= l {
+					return 0, io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				length |= (int(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if length < 0 {
+				return 0, ErrInvalidLengthV3Lock
+			}
+			iNdEx += length
+			if iNdEx < 0 {
+				return 0, ErrInvalidLengthV3Lock
+			}
+			return iNdEx, nil
+		case 3:
+			for {
+				var innerWire uint64
+				var start int = iNdEx
+				for shift := uint(0); ; shift += 7 {
+					if shift >= 64 {
+						return 0, ErrIntOverflowV3Lock
+					}
+					if iNdEx >= l {
+						return 0, io.ErrUnexpectedEOF
+					}
+					b := dAtA[iNdEx]
+					iNdEx++
+					innerWire |= (uint64(b) & 0x7F) << shift
+					if b < 0x80 {
+						break
+					}
+				}
+				innerWireType := int(innerWire & 0x7)
+				if innerWireType == 4 {
+					break
+				}
+				next, err := skipV3Lock(dAtA[start:])
+				if err != nil {
+					return 0, err
+				}
+				iNdEx = start + next
+				if iNdEx < 0 {
+					return 0, ErrInvalidLengthV3Lock
+				}
+			}
+			return iNdEx, nil
+		case 4:
+			return iNdEx, nil
+		case 5:
+			iNdEx += 4
+			return iNdEx, nil
+		default:
+			return 0, fmt.Errorf("proto: illegal wireType %d", wireType)
+		}
+	}
+	panic("unreachable")
+}
+
+var (
+	ErrInvalidLengthV3Lock = fmt.Errorf("proto: negative length found during unmarshaling")
+	ErrIntOverflowV3Lock   = fmt.Errorf("proto: integer overflow")
+)