Merge pull request #8102 from heyitsanthony/txn-nested

api: nested txns

Documentation/dev-guide/api_reference_v3.md

@@ -669,6 +669,7 @@ Empty field.
 | request_range |  | RangeRequest |
 | request_put |  | PutRequest |
 | request_delete_range |  | DeleteRangeRequest |
+| request_txn |  | TxnRequest |
 
 
 
@@ -691,6 +692,7 @@ Empty field.
 | response_range |  | RangeResponse |
 | response_put |  | PutResponse |
 | response_delete_range |  | DeleteRangeResponse |
+| response_txn |  | TxnResponse |
 
 
 

Documentation/dev-guide/apispec/swagger/rpc.swagger.json

@@ -1954,6 +1954,9 @@
         },
         "request_range": {
           "$ref": "#/definitions/etcdserverpbRangeRequest"
+        },
+        "request_txn": {
+          "$ref": "#/definitions/etcdserverpbTxnRequest"
         }
       }
     },
@@ -1993,6 +1996,9 @@
         },
         "response_range": {
           "$ref": "#/definitions/etcdserverpbRangeResponse"
+        },
+        "response_txn": {
+          "$ref": "#/definitions/etcdserverpbTxnResponse"
         }
       }
     },

clientv3/integration/txn_test.go

@@ -106,27 +106,35 @@ func TestTxnReadRetry(t *testing.T) {
 	defer clus.Terminate(t)
 
 	kv := clus.Client(0)
-	clus.Members[0].Stop(t)
-	<-clus.Members[0].StopNotify()
 
-	donec := make(chan struct{})
-	go func() {
-		ctx := context.TODO()
-		_, err := kv.Txn(ctx).Then(clientv3.OpGet("foo")).Commit()
-		if err != nil {
-			t.Fatalf("expected response, got error %v", err)
+	thenOps := [][]clientv3.Op{
+		{clientv3.OpGet("foo")},
+		{clientv3.OpTxn(nil, []clientv3.Op{clientv3.OpGet("foo")}, nil)},
+		{clientv3.OpTxn(nil, nil, nil)},
+		{},
+	}
+	for i := range thenOps {
+		clus.Members[0].Stop(t)
+		<-clus.Members[0].StopNotify()
+
+		donec := make(chan struct{})
+		go func() {
+			_, err := kv.Txn(context.TODO()).Then(thenOps[i]...).Commit()
+			if err != nil {
+				t.Fatalf("expected response, got error %v", err)
+			}
+			donec <- struct{}{}
+		}()
+		// wait for txn to fail on disconnect
+		time.Sleep(100 * time.Millisecond)
+
+		// restart node; client should resume
+		clus.Members[0].Restart(t)
+		select {
+		case <-donec:
+		case <-time.After(2 * clus.Members[1].ServerConfig.ReqTimeout()):
+			t.Fatalf("waited too long")
 		}
-		donec <- struct{}{}
-	}()
-	// wait for txn to fail on disconnect
-	time.Sleep(100 * time.Millisecond)
-
-	// restart node; client should resume
-	clus.Members[0].Restart(t)
-	select {
-	case <-donec:
-	case <-time.After(2 * clus.Members[1].ServerConfig.ReqTimeout()):
-		t.Fatalf("waited too long")
 	}
 }
 
@@ -179,3 +187,41 @@ func TestTxnCompareRange(t *testing.T) {
 		t.Fatal("expected prefix compare to false, got compares as true")
 	}
 }
+
+func TestTxnNested(t *testing.T) {
+	defer testutil.AfterTest(t)
+
+	clus := integration.NewClusterV3(t, &integration.ClusterConfig{Size: 3})
+	defer clus.Terminate(t)
+
+	kv := clus.Client(0)
+
+	tresp, err := kv.Txn(context.TODO()).
+		If(clientv3.Compare(clientv3.Version("foo"), "=", 0)).
+		Then(
+			clientv3.OpPut("foo", "bar"),
+			clientv3.OpTxn(nil, []clientv3.Op{clientv3.OpPut("abc", "123")}, nil)).
+		Else(clientv3.OpPut("foo", "baz")).Commit()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(tresp.Responses) != 2 {
+		t.Errorf("expected 2 top-level txn responses, got %+v", tresp.Responses)
+	}
+
+	// check txn writes were applied
+	resp, err := kv.Get(context.TODO(), "foo")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(resp.Kvs) != 1 || string(resp.Kvs[0].Value) != "bar" {
+		t.Errorf("unexpected Get response %+v", resp)
+	}
+	resp, err = kv.Get(context.TODO(), "abc")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(resp.Kvs) != 1 || string(resp.Kvs[0].Value) != "123" {
+		t.Errorf("unexpected Get response %+v", resp)
+	}
+}

clientv3/kv.go

@@ -66,11 +66,13 @@ type OpResponse struct {
 	put *PutResponse
 	get *GetResponse
 	del *DeleteResponse
+	txn *TxnResponse
 }
 
 func (op OpResponse) Put() *PutResponse    { return op.put }
 func (op OpResponse) Get() *GetResponse    { return op.get }
 func (op OpResponse) Del() *DeleteResponse { return op.del }
+func (op OpResponse) Txn() *TxnResponse    { return op.txn }
 
 type kv struct {
 	remote pb.KVClient
@@ -134,7 +136,6 @@ func (kv *kv) Do(ctx context.Context, op Op) (OpResponse, error) {
 func (kv *kv) do(ctx context.Context, op Op) (OpResponse, error) {
 	var err error
 	switch op.t {
-	// TODO: handle other ops
 	case tRange:
 		var resp *pb.RangeResponse
 		resp, err = kv.remote.Range(ctx, op.toRangeRequest(), grpc.FailFast(false))
@@ -155,6 +156,12 @@ func (kv *kv) do(ctx context.Context, op Op) (OpResponse, error) {
 		if err == nil {
 			return OpResponse{del: (*DeleteResponse)(resp)}, nil
 		}
+	case tTxn:
+		var resp *pb.TxnResponse
+		resp, err = kv.remote.Txn(ctx, op.toTxnRequest())
+		if err == nil {
+			return OpResponse{txn: (*TxnResponse)(resp)}, nil
+		}
 	default:
 		panic("Unknown op")
 	}

clientv3/namespace/kv.go

@@ -74,7 +74,7 @@ func (kv *kvPrefix) Delete(ctx context.Context, key string, opts ...clientv3.OpO
 }
 
 func (kv *kvPrefix) Do(ctx context.Context, op clientv3.Op) (clientv3.OpResponse, error) {
-	if len(op.KeyBytes()) == 0 {
+	if len(op.KeyBytes()) == 0 && !op.IsTxn() {
 		return clientv3.OpResponse{}, rpctypes.ErrEmptyKey
 	}
 	r, err := kv.KV.Do(ctx, kv.prefixOp(op))
@@ -88,6 +88,8 @@ func (kv *kvPrefix) Do(ctx context.Context, op clientv3.Op) (clientv3.OpResponse
 		kv.unprefixPutResponse(r.Put())
 	case r.Del() != nil:
 		kv.unprefixDeleteResponse(r.Del())
+	case r.Txn() != nil:
+		kv.unprefixTxnResponse(r.Txn())
 	}
 	return r, nil
 }
@@ -102,34 +104,17 @@ func (kv *kvPrefix) Txn(ctx context.Context) clientv3.Txn {
 }
 
 func (txn *txnPrefix) If(cs ...clientv3.Cmp) clientv3.Txn {
-	newCmps := make([]clientv3.Cmp, len(cs))
-	for i := range cs {
-		newCmps[i] = cs[i]
-		pfxKey, endKey := txn.kv.prefixInterval(cs[i].KeyBytes(), cs[i].RangeEnd)
-		newCmps[i].WithKeyBytes(pfxKey)
-		if len(cs[i].RangeEnd) != 0 {
-			newCmps[i].RangeEnd = endKey
-		}
-	}
-	txn.Txn = txn.Txn.If(newCmps...)
+	txn.Txn = txn.Txn.If(txn.kv.prefixCmps(cs)...)
 	return txn
 }
 
 func (txn *txnPrefix) Then(ops ...clientv3.Op) clientv3.Txn {
-	newOps := make([]clientv3.Op, len(ops))
-	for i := range ops {
-		newOps[i] = txn.kv.prefixOp(ops[i])
-	}
-	txn.Txn = txn.Txn.Then(newOps...)
+	txn.Txn = txn.Txn.Then(txn.kv.prefixOps(ops)...)
 	return txn
 }
 
 func (txn *txnPrefix) Else(ops ...clientv3.Op) clientv3.Txn {
-	newOps := make([]clientv3.Op, len(ops))
-	for i := range ops {
-		newOps[i] = txn.kv.prefixOp(ops[i])
-	}
-	txn.Txn = txn.Txn.Else(newOps...)
+	txn.Txn = txn.Txn.Else(txn.kv.prefixOps(ops)...)
 	return txn
 }
 
@@ -143,10 +128,14 @@ func (txn *txnPrefix) Commit() (*clientv3.TxnResponse, error) {
 }
 
 func (kv *kvPrefix) prefixOp(op clientv3.Op) clientv3.Op {
-	begin, end := kv.prefixInterval(op.KeyBytes(), op.RangeBytes())
-	op.WithKeyBytes(begin)
-	op.WithRangeBytes(end)
-	return op
+	if !op.IsTxn() {
+		begin, end := kv.prefixInterval(op.KeyBytes(), op.RangeBytes())
+		op.WithKeyBytes(begin)
+		op.WithRangeBytes(end)
+		return op
+	}
+	cmps, thenOps, elseOps := op.Txn()
+	return clientv3.OpTxn(kv.prefixCmps(cmps), kv.prefixOps(thenOps), kv.prefixOps(elseOps))
 }
 
 func (kv *kvPrefix) unprefixGetResponse(resp *clientv3.GetResponse) {
@@ -182,6 +171,10 @@ func (kv *kvPrefix) unprefixTxnResponse(resp *clientv3.TxnResponse) {
 			if tv.ResponseDeleteRange != nil {
 				kv.unprefixDeleteResponse((*clientv3.DeleteResponse)(tv.ResponseDeleteRange))
 			}
+		case *pb.ResponseOp_ResponseTxn:
+			if tv.ResponseTxn != nil {
+				kv.unprefixTxnResponse((*clientv3.TxnResponse)(tv.ResponseTxn))
+			}
 		default:
 		}
 	}
@@ -190,3 +183,24 @@ func (kv *kvPrefix) unprefixTxnResponse(resp *clientv3.TxnResponse) {
 func (p *kvPrefix) prefixInterval(key, end []byte) (pfxKey []byte, pfxEnd []byte) {
 	return prefixInterval(p.pfx, key, end)
 }
+
+func (kv *kvPrefix) prefixCmps(cs []clientv3.Cmp) []clientv3.Cmp {
+	newCmps := make([]clientv3.Cmp, len(cs))
+	for i := range cs {
+		newCmps[i] = cs[i]
+		pfxKey, endKey := kv.prefixInterval(cs[i].KeyBytes(), cs[i].RangeEnd)
+		newCmps[i].WithKeyBytes(pfxKey)
+		if len(cs[i].RangeEnd) != 0 {
+			newCmps[i].RangeEnd = endKey
+		}
+	}
+	return newCmps
+}
+
+func (kv *kvPrefix) prefixOps(ops []clientv3.Op) []clientv3.Op {
+	newOps := make([]clientv3.Op, len(ops))
+	for i := range ops {
+		newOps[i] = kv.prefixOp(ops[i])
+	}
+	return newOps
+}

clientv3/op.go

@@ -23,6 +23,7 @@ const (
 	tRange opType = iota + 1
 	tPut
 	tDeleteRange
+	tTxn
 )
 
 var (
@@ -67,10 +68,18 @@ type Op struct {
 	// for put
 	val     []byte
 	leaseID LeaseID
+
+	// txn
+	cmps    []Cmp
+	thenOps []Op
+	elseOps []Op
 }
 
 // accesors / mutators
 
+func (op Op) IsTxn() bool              { return op.t == tTxn }
+func (op Op) Txn() ([]Cmp, []Op, []Op) { return op.cmps, op.thenOps, op.elseOps }
+
 // KeyBytes returns the byte slice holding the Op's key.
 func (op Op) KeyBytes() []byte { return op.key }
 
@@ -113,6 +122,22 @@ func (op Op) toRangeRequest() *pb.RangeRequest {
 	return r
 }
 
+func (op Op) toTxnRequest() *pb.TxnRequest {
+	thenOps := make([]*pb.RequestOp, len(op.thenOps))
+	for i, tOp := range op.thenOps {
+		thenOps[i] = tOp.toRequestOp()
+	}
+	elseOps := make([]*pb.RequestOp, len(op.elseOps))
+	for i, eOp := range op.elseOps {
+		elseOps[i] = eOp.toRequestOp()
+	}
+	cmps := make([]*pb.Compare, len(op.cmps))
+	for i := range op.cmps {
+		cmps[i] = (*pb.Compare)(&op.cmps[i])
+	}
+	return &pb.TxnRequest{Compare: cmps, Success: thenOps, Failure: elseOps}
+}
+
 func (op Op) toRequestOp() *pb.RequestOp {
 	switch op.t {
 	case tRange:
@@ -123,12 +148,27 @@ func (op Op) toRequestOp() *pb.RequestOp {
 	case tDeleteRange:
 		r := &pb.DeleteRangeRequest{Key: op.key, RangeEnd: op.end, PrevKv: op.prevKV}
 		return &pb.RequestOp{Request: &pb.RequestOp_RequestDeleteRange{RequestDeleteRange: r}}
+	case tTxn:
+		return &pb.RequestOp{Request: &pb.RequestOp_RequestTxn{RequestTxn: op.toTxnRequest()}}
 	default:
 		panic("Unknown Op")
 	}
 }
 
 func (op Op) isWrite() bool {
+	if op.t == tTxn {
+		for _, tOp := range op.thenOps {
+			if tOp.isWrite() {
+				return true
+			}
+		}
+		for _, tOp := range op.elseOps {
+			if tOp.isWrite() {
+				return true
+			}
+		}
+		return false
+	}
 	return op.t != tRange
 }
 
@@ -194,6 +234,10 @@ func OpPut(key, val string, opts ...OpOption) Op {
 	return ret
 }
 
+func OpTxn(cmps []Cmp, thenOps []Op, elseOps []Op) Op {
+	return Op{t: tTxn, cmps: cmps, thenOps: thenOps, elseOps: elseOps}
+}
+
 func opWatch(key string, opts ...OpOption) Op {
 	ret := Op{t: tRange, key: []byte(key)}
 	ret.applyOpts(opts)

etcdserver/api/v3rpc/key.go

@@ -16,11 +16,10 @@
 package v3rpc
 
 import (
-	"sort"
-
 	"github.com/coreos/etcd/etcdserver"
 	"github.com/coreos/etcd/etcdserver/api/v3rpc/rpctypes"
 	pb "github.com/coreos/etcd/etcdserver/etcdserverpb"
+	"github.com/coreos/etcd/pkg/adt"
 	"github.com/coreos/pkg/capnslog"
 	"golang.org/x/net/context"
 )
@@ -89,6 +88,13 @@ func (s *kvServer) Txn(ctx context.Context, r *pb.TxnRequest) (*pb.TxnResponse,
 	if err := checkTxnRequest(r, int(s.maxTxnOps)); err != nil {
 		return nil, err
 	}
+	// check for forbidden put/del overlaps after checking request to avoid quadratic blowup
+	if _, _, err := checkIntervals(r.Success); err != nil {
+		return nil, err
+	}
+	if _, _, err := checkIntervals(r.Failure); err != nil {
+		return nil, err
+	}
 
 	resp, err := s.kv.Txn(ctx, r)
 	if err != nil {
@@ -137,7 +143,14 @@ func checkDeleteRequest(r *pb.DeleteRangeRequest) error {
 }
 
 func checkTxnRequest(r *pb.TxnRequest, maxTxnOps int) error {
-	if len(r.Compare) > maxTxnOps || len(r.Success) > maxTxnOps || len(r.Failure) > maxTxnOps {
+	opc := len(r.Compare)
+	if opc < len(r.Success) {
+		opc = len(r.Success)
+	}
+	if opc < len(r.Failure) {
+		opc = len(r.Failure)
+	}
+	if opc > maxTxnOps {
 		return rpctypes.ErrGRPCTooManyOps
 	}
 
@@ -146,100 +159,117 @@ func checkTxnRequest(r *pb.TxnRequest, maxTxnOps int) error {
 			return rpctypes.ErrGRPCEmptyKey
 		}
 	}
-
 	for _, u := range r.Success {
-		if err := checkRequestOp(u); err != nil {
+		if err := checkRequestOp(u, maxTxnOps-opc); err != nil {
 			return err
 		}
 	}
-	if err := checkRequestDupKeys(r.Success); err != nil {
-		return err
-	}
-
 	for _, u := range r.Failure {
-		if err := checkRequestOp(u); err != nil {
+		if err := checkRequestOp(u, maxTxnOps-opc); err != nil {
 			return err
 		}
 	}
-	return checkRequestDupKeys(r.Failure)
+
+	return nil
 }
 
-// checkRequestDupKeys gives rpctypes.ErrGRPCDuplicateKey if the same key is modified twice
-func checkRequestDupKeys(reqs []*pb.RequestOp) error {
-	// check put overlap
-	keys := make(map[string]struct{})
-	for _, requ := range reqs {
-		tv, ok := requ.Request.(*pb.RequestOp_RequestPut)
+// checkIntervals tests whether puts and deletes overlap for a list of ops. If
+// there is an overlap, returns an error. If no overlap, return put and delete
+// sets for recursive evaluation.
+func checkIntervals(reqs []*pb.RequestOp) (map[string]struct{}, adt.IntervalTree, error) {
+	var dels adt.IntervalTree
+
+	// collect deletes from this level; build first to check lower level overlapped puts
+	for _, req := range reqs {
+		tv, ok := req.Request.(*pb.RequestOp_RequestDeleteRange)
 		if !ok {
 			continue
 		}
-		preq := tv.RequestPut
-		if preq == nil {
+		dreq := tv.RequestDeleteRange
+		if dreq == nil {
 			continue
 		}
-		if _, ok := keys[string(preq.Key)]; ok {
-			return rpctypes.ErrGRPCDuplicateKey
+		var iv adt.Interval
+		if len(dreq.RangeEnd) != 0 {
+			iv = adt.NewStringAffineInterval(string(dreq.Key), string(dreq.RangeEnd))
+		} else {
+			iv = adt.NewStringAffinePoint(string(dreq.Key))
 		}
-		keys[string(preq.Key)] = struct{}{}
-	}
-
-	// no need to check deletes if no puts; delete overlaps are permitted
-	if len(keys) == 0 {
-		return nil
-	}
-
-	// sort keys for range checking
-	sortedKeys := []string{}
-	for k := range keys {
-		sortedKeys = append(sortedKeys, k)
+		dels.Insert(iv, struct{}{})
 	}
-	sort.Strings(sortedKeys)
 
-	// check put overlap with deletes
-	for _, requ := range reqs {
-		tv, ok := requ.Request.(*pb.RequestOp_RequestDeleteRange)
+	// collect children puts/deletes
+	puts := make(map[string]struct{})
+	for _, req := range reqs {
+		tv, ok := req.Request.(*pb.RequestOp_RequestTxn)
 		if !ok {
 			continue
 		}
-		dreq := tv.RequestDeleteRange
-		if dreq == nil {
-			continue
+		putsThen, delsThen, err := checkIntervals(tv.RequestTxn.Success)
+		if err != nil {
+			return nil, dels, err
+		}
+		putsElse, delsElse, err := checkIntervals(tv.RequestTxn.Failure)
+		if err != nil {
+			return nil, dels, err
 		}
-		if dreq.RangeEnd == nil {
-			if _, found := keys[string(dreq.Key)]; found {
-				return rpctypes.ErrGRPCDuplicateKey
+		for k := range putsThen {
+			if _, ok := puts[k]; ok {
+				return nil, dels, rpctypes.ErrGRPCDuplicateKey
 			}
-		} else {
-			lo := sort.SearchStrings(sortedKeys, string(dreq.Key))
-			hi := sort.SearchStrings(sortedKeys, string(dreq.RangeEnd))
-			if lo != hi {
-				// element between lo and hi => overlap
-				return rpctypes.ErrGRPCDuplicateKey
+			if dels.Intersects(adt.NewStringAffinePoint(k)) {
+				return nil, dels, rpctypes.ErrGRPCDuplicateKey
 			}
+			puts[k] = struct{}{}
 		}
+		for k := range putsElse {
+			if _, ok := puts[k]; ok {
+				// if key is from putsThen, overlap is OK since
+				// either then/else are mutually exclusive
+				if _, isSafe := putsThen[k]; !isSafe {
+					return nil, dels, rpctypes.ErrGRPCDuplicateKey
+				}
+			}
+			if dels.Intersects(adt.NewStringAffinePoint(k)) {
+				return nil, dels, rpctypes.ErrGRPCDuplicateKey
+			}
+			puts[k] = struct{}{}
+		}
+		dels.Union(delsThen, adt.NewStringAffineInterval("\x00", ""))
+		dels.Union(delsElse, adt.NewStringAffineInterval("\x00", ""))
 	}
 
-	return nil
+	// collect and check this level's puts
+	for _, req := range reqs {
+		tv, ok := req.Request.(*pb.RequestOp_RequestPut)
+		if !ok || tv.RequestPut == nil {
+			continue
+		}
+		k := string(tv.RequestPut.Key)
+		if _, ok := puts[k]; ok {
+			return nil, dels, rpctypes.ErrGRPCDuplicateKey
+		}
+		if dels.Intersects(adt.NewStringAffinePoint(k)) {
+			return nil, dels, rpctypes.ErrGRPCDuplicateKey
+		}
+		puts[k] = struct{}{}
+	}
+	return puts, dels, nil
 }
 
-func checkRequestOp(u *pb.RequestOp) error {
+func checkRequestOp(u *pb.RequestOp, maxTxnOps int) error {
 	// TODO: ensure only one of the field is set.
 	switch uv := u.Request.(type) {
 	case *pb.RequestOp_RequestRange:
-		if uv.RequestRange != nil {
-			return checkRangeRequest(uv.RequestRange)
-		}
+		return checkRangeRequest(uv.RequestRange)
 	case *pb.RequestOp_RequestPut:
-		if uv.RequestPut != nil {
-			return checkPutRequest(uv.RequestPut)
-		}
+		return checkPutRequest(uv.RequestPut)
 	case *pb.RequestOp_RequestDeleteRange:
-		if uv.RequestDeleteRange != nil {
-			return checkDeleteRequest(uv.RequestDeleteRange)
-		}
+		return checkDeleteRequest(uv.RequestDeleteRange)
+	case *pb.RequestOp_RequestTxn:
+		return checkTxnRequest(uv.RequestTxn, maxTxnOps)
 	default:
 		// empty op / nil entry
 		return rpctypes.ErrGRPCKeyNotFound
 	}
-	return nil
 }

etcdserver/apply.go

@@ -76,14 +76,30 @@ type applierV3 interface {
 	RoleList(ua *pb.AuthRoleListRequest) (*pb.AuthRoleListResponse, error)
 }
 
+type checkReqFunc func(mvcc.ReadView, *pb.RequestOp) error
+
 type applierV3backend struct {
 	s *EtcdServer
+
+	checkPut   checkReqFunc
+	checkRange checkReqFunc
+}
+
+func (s *EtcdServer) newApplierV3Backend() applierV3 {
+	base := &applierV3backend{s: s}
+	base.checkPut = func(rv mvcc.ReadView, req *pb.RequestOp) error {
+		return base.checkRequestPut(rv, req)
+	}
+	base.checkRange = func(rv mvcc.ReadView, req *pb.RequestOp) error {
+		return base.checkRequestRange(rv, req)
+	}
+	return base
 }
 
 func (s *EtcdServer) newApplierV3() applierV3 {
 	return newAuthApplierV3(
 		s.AuthStore(),
-		newQuotaApplierV3(s, &applierV3backend{s}),
+		newQuotaApplierV3(s, s.newApplierV3Backend()),
 		s.lessor,
 	)
 }
@@ -315,24 +331,19 @@ func (a *applierV3backend) Txn(rt *pb.TxnRequest) (*pb.TxnResponse, error) {
 	isWrite := !isTxnReadonly(rt)
 	txn := mvcc.NewReadOnlyTxnWrite(a.s.KV().Read())
 
-	reqs, ok := a.compareToOps(txn, rt)
+	txnPath := compareToPath(txn, rt)
 	if isWrite {
-		if err := a.checkRequestPut(txn, reqs); err != nil {
+		if _, err := checkRequests(txn, rt, txnPath, a.checkPut); err != nil {
 			txn.End()
 			return nil, err
 		}
 	}
-	if err := checkRequestRange(txn, reqs); err != nil {
+	if _, err := checkRequests(txn, rt, txnPath, a.checkRange); err != nil {
 		txn.End()
 		return nil, err
 	}
 
-	resps := make([]*pb.ResponseOp, len(reqs))
-	txnResp := &pb.TxnResponse{
-		Responses: resps,
-		Succeeded: ok,
-		Header:    &pb.ResponseHeader{},
-	}
+	txnResp, _ := newTxnResp(rt, txnPath)
 
 	// When executing mutable txn ops, etcd must hold the txn lock so
 	// readers do not see any intermediate results. Since writes are
@@ -342,9 +353,7 @@ func (a *applierV3backend) Txn(rt *pb.TxnRequest) (*pb.TxnResponse, error) {
 		txn.End()
 		txn = a.s.KV().Write()
 	}
-	for i := range reqs {
-		resps[i] = a.applyUnion(txn, reqs[i])
-	}
+	a.applyTxn(txn, rt, txnPath, txnResp)
 	rev := txn.Rev()
 	if len(txn.Changes()) != 0 {
 		rev++
@@ -355,13 +364,60 @@ func (a *applierV3backend) Txn(rt *pb.TxnRequest) (*pb.TxnResponse, error) {
 	return txnResp, nil
 }
 
-func (a *applierV3backend) compareToOps(rv mvcc.ReadView, rt *pb.TxnRequest) ([]*pb.RequestOp, bool) {
-	for _, c := range rt.Compare {
+// newTxnResp allocates a txn response for a txn request given a path.
+func newTxnResp(rt *pb.TxnRequest, txnPath []bool) (txnResp *pb.TxnResponse, txnCount int) {
+	reqs := rt.Success
+	if !txnPath[0] {
+		reqs = rt.Failure
+	}
+	resps := make([]*pb.ResponseOp, len(reqs))
+	txnResp = &pb.TxnResponse{
+		Responses: resps,
+		Succeeded: txnPath[0],
+		Header:    &pb.ResponseHeader{},
+	}
+	for i, req := range reqs {
+		switch tv := req.Request.(type) {
+		case *pb.RequestOp_RequestRange:
+			resps[i] = &pb.ResponseOp{Response: &pb.ResponseOp_ResponseRange{}}
+		case *pb.RequestOp_RequestPut:
+			resps[i] = &pb.ResponseOp{Response: &pb.ResponseOp_ResponsePut{}}
+		case *pb.RequestOp_RequestDeleteRange:
+			resps[i] = &pb.ResponseOp{Response: &pb.ResponseOp_ResponseDeleteRange{}}
+		case *pb.RequestOp_RequestTxn:
+			resp, txns := newTxnResp(tv.RequestTxn, txnPath[1:])
+			resps[i] = &pb.ResponseOp{Response: &pb.ResponseOp_ResponseTxn{ResponseTxn: resp}}
+			txnPath = txnPath[1+txns:]
+			txnCount += txns + 1
+		default:
+		}
+	}
+	return txnResp, txnCount
+}
+
+func compareToPath(rv mvcc.ReadView, rt *pb.TxnRequest) []bool {
+	txnPath := make([]bool, 1)
+	ops := rt.Success
+	if txnPath[0] = applyCompares(rv, rt.Compare); !txnPath[0] {
+		ops = rt.Failure
+	}
+	for _, op := range ops {
+		tv, ok := op.Request.(*pb.RequestOp_RequestTxn)
+		if !ok || tv.RequestTxn == nil {
+			continue
+		}
+		txnPath = append(txnPath, compareToPath(rv, tv.RequestTxn)...)
+	}
+	return txnPath
+}
+
+func applyCompares(rv mvcc.ReadView, cmps []*pb.Compare) bool {
+	for _, c := range cmps {
 		if !applyCompare(rv, c) {
-			return rt.Failure, false
+			return false
 		}
 	}
-	return rt.Success, true
+	return true
 }
 
 // applyCompare applies the compare request.
@@ -431,38 +487,42 @@ func compareKV(c *pb.Compare, ckv mvccpb.KeyValue) bool {
 	return true
 }
 
-func (a *applierV3backend) applyUnion(txn mvcc.TxnWrite, union *pb.RequestOp) *pb.ResponseOp {
-	switch tv := union.Request.(type) {
-	case *pb.RequestOp_RequestRange:
-		if tv.RequestRange != nil {
+func (a *applierV3backend) applyTxn(txn mvcc.TxnWrite, rt *pb.TxnRequest, txnPath []bool, tresp *pb.TxnResponse) (txns int) {
+	reqs := rt.Success
+	if !txnPath[0] {
+		reqs = rt.Failure
+	}
+	for i, req := range reqs {
+		respi := tresp.Responses[i].Response
+		switch tv := req.Request.(type) {
+		case *pb.RequestOp_RequestRange:
 			resp, err := a.Range(txn, tv.RequestRange)
 			if err != nil {
 				plog.Panicf("unexpected error during txn: %v", err)
 			}
-			return &pb.ResponseOp{Response: &pb.ResponseOp_ResponseRange{ResponseRange: resp}}
-		}
-	case *pb.RequestOp_RequestPut:
-		if tv.RequestPut != nil {
+			respi.(*pb.ResponseOp_ResponseRange).ResponseRange = resp
+		case *pb.RequestOp_RequestPut:
 			resp, err := a.Put(txn, tv.RequestPut)
 			if err != nil {
 				plog.Panicf("unexpected error during txn: %v", err)
 			}
-			return &pb.ResponseOp{Response: &pb.ResponseOp_ResponsePut{ResponsePut: resp}}
-		}
-	case *pb.RequestOp_RequestDeleteRange:
-		if tv.RequestDeleteRange != nil {
+			respi.(*pb.ResponseOp_ResponsePut).ResponsePut = resp
+		case *pb.RequestOp_RequestDeleteRange:
 			resp, err := a.DeleteRange(txn, tv.RequestDeleteRange)
 			if err != nil {
 				plog.Panicf("unexpected error during txn: %v", err)
 			}
-			return &pb.ResponseOp{Response: &pb.ResponseOp_ResponseDeleteRange{ResponseDeleteRange: resp}}
+			respi.(*pb.ResponseOp_ResponseDeleteRange).ResponseDeleteRange = resp
+		case *pb.RequestOp_RequestTxn:
+			resp := respi.(*pb.ResponseOp_ResponseTxn).ResponseTxn
+			applyTxns := a.applyTxn(txn, tv.RequestTxn, txnPath[1:], resp)
+			txns += applyTxns + 1
+			txnPath = txnPath[applyTxns+1:]
+		default:
+			// empty union
 		}
-	default:
-		// empty union
-		return nil
 	}
-	return nil
-
+	return txns
 }
 
 func (a *applierV3backend) Compaction(compaction *pb.CompactionRequest) (*pb.CompactionResponse, <-chan struct{}, error) {
@@ -768,57 +828,70 @@ func (s *kvSortByValue) Less(i, j int) bool {
 	return bytes.Compare(s.kvs[i].Value, s.kvs[j].Value) < 0
 }
 
-func (a *applierV3backend) checkRequestPut(rv mvcc.ReadView, reqs []*pb.RequestOp) error {
-	for _, requ := range reqs {
-		tv, ok := requ.Request.(*pb.RequestOp_RequestPut)
-		if !ok {
-			continue
-		}
-		preq := tv.RequestPut
-		if preq == nil {
-			continue
-		}
-		if preq.IgnoreValue || preq.IgnoreLease {
-			// expects previous key-value, error if not exist
-			rr, err := rv.Range(preq.Key, nil, mvcc.RangeOptions{})
+func checkRequests(rv mvcc.ReadView, rt *pb.TxnRequest, txnPath []bool, f checkReqFunc) (int, error) {
+	txnCount := 0
+	reqs := rt.Success
+	if !txnPath[0] {
+		reqs = rt.Failure
+	}
+	for _, req := range reqs {
+		if tv, ok := req.Request.(*pb.RequestOp_RequestTxn); ok && tv.RequestTxn != nil {
+			txns, err := checkRequests(rv, tv.RequestTxn, txnPath[1:], f)
 			if err != nil {
-				return err
+				return 0, err
 			}
-			if rr == nil || len(rr.KVs) == 0 {
-				return ErrKeyNotFound
-			}
-		}
-		if lease.LeaseID(preq.Lease) == lease.NoLease {
+			txnCount += txns + 1
+			txnPath = txnPath[txns+1:]
 			continue
 		}
-		if l := a.s.lessor.Lookup(lease.LeaseID(preq.Lease)); l == nil {
-			return lease.ErrLeaseNotFound
+		if err := f(rv, req); err != nil {
+			return 0, err
 		}
 	}
-	return nil
+	return txnCount, nil
 }
 
-func checkRequestRange(rv mvcc.ReadView, reqs []*pb.RequestOp) error {
-	for _, requ := range reqs {
-		tv, ok := requ.Request.(*pb.RequestOp_RequestRange)
-		if !ok {
-			continue
-		}
-		greq := tv.RequestRange
-		if greq == nil || greq.Revision == 0 {
-			continue
+func (a *applierV3backend) checkRequestPut(rv mvcc.ReadView, reqOp *pb.RequestOp) error {
+	tv, ok := reqOp.Request.(*pb.RequestOp_RequestPut)
+	if !ok || tv.RequestPut == nil {
+		return nil
+	}
+	req := tv.RequestPut
+	if req.IgnoreValue || req.IgnoreLease {
+		// expects previous key-value, error if not exist
+		rr, err := rv.Range(req.Key, nil, mvcc.RangeOptions{})
+		if err != nil {
+			return err
 		}
-
-		if greq.Revision > rv.Rev() {
-			return mvcc.ErrFutureRev
+		if rr == nil || len(rr.KVs) == 0 {
+			return ErrKeyNotFound
 		}
-		if greq.Revision < rv.FirstRev() {
-			return mvcc.ErrCompacted
+	}
+	if lease.LeaseID(req.Lease) != lease.NoLease {
+		if l := a.s.lessor.Lookup(lease.LeaseID(req.Lease)); l == nil {
+			return lease.ErrLeaseNotFound
 		}
 	}
 	return nil
 }
 
+func (a *applierV3backend) checkRequestRange(rv mvcc.ReadView, reqOp *pb.RequestOp) error {
+	tv, ok := reqOp.Request.(*pb.RequestOp_RequestRange)
+	if !ok || tv.RequestRange == nil {
+		return nil
+	}
+	req := tv.RequestRange
+	switch {
+	case req.Revision == 0:
+		return nil
+	case req.Revision > rv.Rev():
+		return mvcc.ErrFutureRev
+	case req.Revision < rv.FirstRev():
+		return mvcc.ErrCompacted
+	}
+	return nil
+}
+
 func compareInt64(a, b int64) int {
 	switch {
 	case a < b:

etcdserver/etcdserverpb/rpc.pb.go

@@ -608,6 +608,7 @@ type RequestOp struct {
 	//	*RequestOp_RequestRange
 	//	*RequestOp_RequestPut
 	//	*RequestOp_RequestDeleteRange
+	//	*RequestOp_RequestTxn
 	Request isRequestOp_Request `protobuf_oneof:"request"`
 }
 
@@ -631,10 +632,14 @@ type RequestOp_RequestPut struct {
 type RequestOp_RequestDeleteRange struct {
 	RequestDeleteRange *DeleteRangeRequest `protobuf:"bytes,3,opt,name=request_delete_range,json=requestDeleteRange,oneof"`
 }
+type RequestOp_RequestTxn struct {
+	RequestTxn *TxnRequest `protobuf:"bytes,4,opt,name=request_txn,json=requestTxn,oneof"`
+}
 
 func (*RequestOp_RequestRange) isRequestOp_Request()       {}
 func (*RequestOp_RequestPut) isRequestOp_Request()         {}
 func (*RequestOp_RequestDeleteRange) isRequestOp_Request() {}
+func (*RequestOp_RequestTxn) isRequestOp_Request()         {}
 
 func (m *RequestOp) GetRequest() isRequestOp_Request {
 	if m != nil {
@@ -664,12 +669,20 @@ func (m *RequestOp) GetRequestDeleteRange() *DeleteRangeRequest {
 	return nil
 }
 
+func (m *RequestOp) GetRequestTxn() *TxnRequest {
+	if x, ok := m.GetRequest().(*RequestOp_RequestTxn); ok {
+		return x.RequestTxn
+	}
+	return nil
+}
+
 // XXX_OneofFuncs is for the internal use of the proto package.
 func (*RequestOp) XXX_OneofFuncs() (func(msg proto.Message, b *proto.Buffer) error, func(msg proto.Message, tag, wire int, b *proto.Buffer) (bool, error), func(msg proto.Message) (n int), []interface{}) {
 	return _RequestOp_OneofMarshaler, _RequestOp_OneofUnmarshaler, _RequestOp_OneofSizer, []interface{}{
 		(*RequestOp_RequestRange)(nil),
 		(*RequestOp_RequestPut)(nil),
 		(*RequestOp_RequestDeleteRange)(nil),
+		(*RequestOp_RequestTxn)(nil),
 	}
 }
 
@@ -692,6 +705,11 @@ func _RequestOp_OneofMarshaler(msg proto.Message, b *proto.Buffer) error {
 		if err := b.EncodeMessage(x.RequestDeleteRange); err != nil {
 			return err
 		}
+	case *RequestOp_RequestTxn:
+		_ = b.EncodeVarint(4<<3 | proto.WireBytes)
+		if err := b.EncodeMessage(x.RequestTxn); err != nil {
+			return err
+		}
 	case nil:
 	default:
 		return fmt.Errorf("RequestOp.Request has unexpected type %T", x)
@@ -726,6 +744,14 @@ func _RequestOp_OneofUnmarshaler(msg proto.Message, tag, wire int, b *proto.Buff
 		err := b.DecodeMessage(msg)
 		m.Request = &RequestOp_RequestDeleteRange{msg}
 		return true, err
+	case 4: // request.request_txn
+		if wire != proto.WireBytes {
+			return true, proto.ErrInternalBadWireType
+		}
+		msg := new(TxnRequest)
+		err := b.DecodeMessage(msg)
+		m.Request = &RequestOp_RequestTxn{msg}
+		return true, err
 	default:
 		return false, nil
 	}
@@ -750,6 +776,11 @@ func _RequestOp_OneofSizer(msg proto.Message) (n int) {
 		n += proto.SizeVarint(3<<3 | proto.WireBytes)
 		n += proto.SizeVarint(uint64(s))
 		n += s
+	case *RequestOp_RequestTxn:
+		s := proto.Size(x.RequestTxn)
+		n += proto.SizeVarint(4<<3 | proto.WireBytes)
+		n += proto.SizeVarint(uint64(s))
+		n += s
 	case nil:
 	default:
 		panic(fmt.Sprintf("proto: unexpected type %T in oneof", x))
@@ -764,6 +795,7 @@ type ResponseOp struct {
 	//	*ResponseOp_ResponseRange
 	//	*ResponseOp_ResponsePut
 	//	*ResponseOp_ResponseDeleteRange
+	//	*ResponseOp_ResponseTxn
 	Response isResponseOp_Response `protobuf_oneof:"response"`
 }
 
@@ -787,10 +819,14 @@ type ResponseOp_ResponsePut struct {
 type ResponseOp_ResponseDeleteRange struct {
 	ResponseDeleteRange *DeleteRangeResponse `protobuf:"bytes,3,opt,name=response_delete_range,json=responseDeleteRange,oneof"`
 }
+type ResponseOp_ResponseTxn struct {
+	ResponseTxn *TxnResponse `protobuf:"bytes,4,opt,name=response_txn,json=responseTxn,oneof"`
+}
 
 func (*ResponseOp_ResponseRange) isResponseOp_Response()       {}
 func (*ResponseOp_ResponsePut) isResponseOp_Response()         {}
 func (*ResponseOp_ResponseDeleteRange) isResponseOp_Response() {}
+func (*ResponseOp_ResponseTxn) isResponseOp_Response()         {}
 
 func (m *ResponseOp) GetResponse() isResponseOp_Response {
 	if m != nil {
@@ -820,12 +856,20 @@ func (m *ResponseOp) GetResponseDeleteRange() *DeleteRangeResponse {
 	return nil
 }
 
+func (m *ResponseOp) GetResponseTxn() *TxnResponse {
+	if x, ok := m.GetResponse().(*ResponseOp_ResponseTxn); ok {
+		return x.ResponseTxn
+	}
+	return nil
+}
+
 // XXX_OneofFuncs is for the internal use of the proto package.
 func (*ResponseOp) XXX_OneofFuncs() (func(msg proto.Message, b *proto.Buffer) error, func(msg proto.Message, tag, wire int, b *proto.Buffer) (bool, error), func(msg proto.Message) (n int), []interface{}) {
 	return _ResponseOp_OneofMarshaler, _ResponseOp_OneofUnmarshaler, _ResponseOp_OneofSizer, []interface{}{
 		(*ResponseOp_ResponseRange)(nil),
 		(*ResponseOp_ResponsePut)(nil),
 		(*ResponseOp_ResponseDeleteRange)(nil),
+		(*ResponseOp_ResponseTxn)(nil),
 	}
 }
 
@@ -848,6 +892,11 @@ func _ResponseOp_OneofMarshaler(msg proto.Message, b *proto.Buffer) error {
 		if err := b.EncodeMessage(x.ResponseDeleteRange); err != nil {
 			return err
 		}
+	case *ResponseOp_ResponseTxn:
+		_ = b.EncodeVarint(4<<3 | proto.WireBytes)
+		if err := b.EncodeMessage(x.ResponseTxn); err != nil {
+			return err
+		}
 	case nil:
 	default:
 		return fmt.Errorf("ResponseOp.Response has unexpected type %T", x)
@@ -882,6 +931,14 @@ func _ResponseOp_OneofUnmarshaler(msg proto.Message, tag, wire int, b *proto.Buf
 		err := b.DecodeMessage(msg)
 		m.Response = &ResponseOp_ResponseDeleteRange{msg}
 		return true, err
+	case 4: // response.response_txn
+		if wire != proto.WireBytes {
+			return true, proto.ErrInternalBadWireType
+		}
+		msg := new(TxnResponse)
+		err := b.DecodeMessage(msg)
+		m.Response = &ResponseOp_ResponseTxn{msg}
+		return true, err
 	default:
 		return false, nil
 	}
@@ -906,6 +963,11 @@ func _ResponseOp_OneofSizer(msg proto.Message) (n int) {
 		n += proto.SizeVarint(3<<3 | proto.WireBytes)
 		n += proto.SizeVarint(uint64(s))
 		n += s
+	case *ResponseOp_ResponseTxn:
+		s := proto.Size(x.ResponseTxn)
+		n += proto.SizeVarint(4<<3 | proto.WireBytes)
+		n += proto.SizeVarint(uint64(s))
+		n += s
 	case nil:
 	default:
 		panic(fmt.Sprintf("proto: unexpected type %T in oneof", x))
@@ -4942,6 +5004,20 @@ func (m *RequestOp_RequestDeleteRange) MarshalTo(dAtA []byte) (int, error) {
 	}
 	return i, nil
 }
+func (m *RequestOp_RequestTxn) MarshalTo(dAtA []byte) (int, error) {
+	i := 0
+	if m.RequestTxn != nil {
+		dAtA[i] = 0x22
+		i++
+		i = encodeVarintRpc(dAtA, i, uint64(m.RequestTxn.Size()))
+		n9, err := m.RequestTxn.MarshalTo(dAtA[i:])
+		if err != nil {
+			return 0, err
+		}
+		i += n9
+	}
+	return i, nil
+}
 func (m *ResponseOp) Marshal() (dAtA []byte, err error) {
 	size := m.Size()
 	dAtA = make([]byte, size)
@@ -4958,11 +5034,11 @@ func (m *ResponseOp) MarshalTo(dAtA []byte) (int, error) {
 	var l int
 	_ = l
 	if m.Response != nil {
-		nn9, err := m.Response.MarshalTo(dAtA[i:])
+		nn10, err := m.Response.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += nn9
+		i += nn10
 	}
 	return i, nil
 }
@@ -4973,11 +5049,11 @@ func (m *ResponseOp_ResponseRange) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.ResponseRange.Size()))
-		n10, err := m.ResponseRange.MarshalTo(dAtA[i:])
+		n11, err := m.ResponseRange.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n10
+		i += n11
 	}
 	return i, nil
 }
@@ -4987,11 +5063,11 @@ func (m *ResponseOp_ResponsePut) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0x12
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.ResponsePut.Size()))
-		n11, err := m.ResponsePut.MarshalTo(dAtA[i:])
+		n12, err := m.ResponsePut.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n11
+		i += n12
 	}
 	return i, nil
 }
@@ -5001,11 +5077,25 @@ func (m *ResponseOp_ResponseDeleteRange) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0x1a
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.ResponseDeleteRange.Size()))
-		n12, err := m.ResponseDeleteRange.MarshalTo(dAtA[i:])
+		n13, err := m.ResponseDeleteRange.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n12
+		i += n13
+	}
+	return i, nil
+}
+func (m *ResponseOp_ResponseTxn) MarshalTo(dAtA []byte) (int, error) {
+	i := 0
+	if m.ResponseTxn != nil {
+		dAtA[i] = 0x22
+		i++
+		i = encodeVarintRpc(dAtA, i, uint64(m.ResponseTxn.Size()))
+		n14, err := m.ResponseTxn.MarshalTo(dAtA[i:])
+		if err != nil {
+			return 0, err
+		}
+		i += n14
 	}
 	return i, nil
 }
@@ -5041,11 +5131,11 @@ func (m *Compare) MarshalTo(dAtA []byte) (int, error) {
 		i += copy(dAtA[i:], m.Key)
 	}
 	if m.TargetUnion != nil {
-		nn13, err := m.TargetUnion.MarshalTo(dAtA[i:])
+		nn15, err := m.TargetUnion.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += nn13
+		i += nn15
 	}
 	if len(m.RangeEnd) > 0 {
 		dAtA[i] = 0x42
@@ -5160,11 +5250,11 @@ func (m *TxnResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n14, err := m.Header.MarshalTo(dAtA[i:])
+		n16, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n14
+		i += n16
 	}
 	if m.Succeeded {
 		dAtA[i] = 0x10
@@ -5243,11 +5333,11 @@ func (m *CompactionResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n15, err := m.Header.MarshalTo(dAtA[i:])
+		n17, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n15
+		i += n17
 	}
 	return i, nil
 }
@@ -5289,11 +5379,11 @@ func (m *HashResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n16, err := m.Header.MarshalTo(dAtA[i:])
+		n18, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n16
+		i += n18
 	}
 	if m.Hash != 0 {
 		dAtA[i] = 0x10
@@ -5340,11 +5430,11 @@ func (m *SnapshotResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n17, err := m.Header.MarshalTo(dAtA[i:])
+		n19, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n17
+		i += n19
 	}
 	if m.RemainingBytes != 0 {
 		dAtA[i] = 0x10
@@ -5376,11 +5466,11 @@ func (m *WatchRequest) MarshalTo(dAtA []byte) (int, error) {
 	var l int
 	_ = l
 	if m.RequestUnion != nil {
-		nn18, err := m.RequestUnion.MarshalTo(dAtA[i:])
+		nn20, err := m.RequestUnion.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += nn18
+		i += nn20
 	}
 	return i, nil
 }
@@ -5391,11 +5481,11 @@ func (m *WatchRequest_CreateRequest) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.CreateRequest.Size()))
-		n19, err := m.CreateRequest.MarshalTo(dAtA[i:])
+		n21, err := m.CreateRequest.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n19
+		i += n21
 	}
 	return i, nil
 }
@@ -5405,11 +5495,11 @@ func (m *WatchRequest_CancelRequest) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0x12
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.CancelRequest.Size()))
-		n20, err := m.CancelRequest.MarshalTo(dAtA[i:])
+		n22, err := m.CancelRequest.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n20
+		i += n22
 	}
 	return i, nil
 }
@@ -5456,21 +5546,21 @@ func (m *WatchCreateRequest) MarshalTo(dAtA []byte) (int, error) {
 		i++
 	}
 	if len(m.Filters) > 0 {
-		dAtA22 := make([]byte, len(m.Filters)*10)
-		var j21 int
+		dAtA24 := make([]byte, len(m.Filters)*10)
+		var j23 int
 		for _, num := range m.Filters {
 			for num >= 1<<7 {
-				dAtA22[j21] = uint8(uint64(num)&0x7f | 0x80)
+				dAtA24[j23] = uint8(uint64(num)&0x7f | 0x80)
 				num >>= 7
-				j21++
+				j23++
 			}
-			dAtA22[j21] = uint8(num)
-			j21++
+			dAtA24[j23] = uint8(num)
+			j23++
 		}
 		dAtA[i] = 0x2a
 		i++
-		i = encodeVarintRpc(dAtA, i, uint64(j21))
-		i += copy(dAtA[i:], dAtA22[:j21])
+		i = encodeVarintRpc(dAtA, i, uint64(j23))
+		i += copy(dAtA[i:], dAtA24[:j23])
 	}
 	if m.PrevKv {
 		dAtA[i] = 0x30
@@ -5527,11 +5617,11 @@ func (m *WatchResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n23, err := m.Header.MarshalTo(dAtA[i:])
+		n25, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n23
+		i += n25
 	}
 	if m.WatchId != 0 {
 		dAtA[i] = 0x10
@@ -5631,11 +5721,11 @@ func (m *LeaseGrantResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n24, err := m.Header.MarshalTo(dAtA[i:])
+		n26, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n24
+		i += n26
 	}
 	if m.ID != 0 {
 		dAtA[i] = 0x10
@@ -5698,11 +5788,11 @@ func (m *LeaseRevokeResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n25, err := m.Header.MarshalTo(dAtA[i:])
+		n27, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n25
+		i += n27
 	}
 	return i, nil
 }
@@ -5749,11 +5839,11 @@ func (m *LeaseKeepAliveResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n26, err := m.Header.MarshalTo(dAtA[i:])
+		n28, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n26
+		i += n28
 	}
 	if m.ID != 0 {
 		dAtA[i] = 0x10
@@ -5820,11 +5910,11 @@ func (m *LeaseTimeToLiveResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n27, err := m.Header.MarshalTo(dAtA[i:])
+		n29, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n27
+		i += n29
 	}
 	if m.ID != 0 {
 		dAtA[i] = 0x10
@@ -5963,21 +6053,21 @@ func (m *MemberAddResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n28, err := m.Header.MarshalTo(dAtA[i:])
+		n30, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n28
+		i += n30
 	}
 	if m.Member != nil {
 		dAtA[i] = 0x12
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Member.Size()))
-		n29, err := m.Member.MarshalTo(dAtA[i:])
+		n31, err := m.Member.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n29
+		i += n31
 	}
 	if len(m.Members) > 0 {
 		for _, msg := range m.Members {
@@ -6036,11 +6126,11 @@ func (m *MemberRemoveResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n30, err := m.Header.MarshalTo(dAtA[i:])
+		n32, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n30
+		i += n32
 	}
 	if len(m.Members) > 0 {
 		for _, msg := range m.Members {
@@ -6114,11 +6204,11 @@ func (m *MemberUpdateResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n31, err := m.Header.MarshalTo(dAtA[i:])
+		n33, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n31
+		i += n33
 	}
 	if len(m.Members) > 0 {
 		for _, msg := range m.Members {
@@ -6172,11 +6262,11 @@ func (m *MemberListResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n32, err := m.Header.MarshalTo(dAtA[i:])
+		n34, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n32
+		i += n34
 	}
 	if len(m.Members) > 0 {
 		for _, msg := range m.Members {
@@ -6230,11 +6320,11 @@ func (m *DefragmentResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n33, err := m.Header.MarshalTo(dAtA[i:])
+		n35, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n33
+		i += n35
 	}
 	return i, nil
 }
@@ -6319,11 +6409,11 @@ func (m *AlarmResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n34, err := m.Header.MarshalTo(dAtA[i:])
+		n36, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n34
+		i += n36
 	}
 	if len(m.Alarms) > 0 {
 		for _, msg := range m.Alarms {
@@ -6377,11 +6467,11 @@ func (m *StatusResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n35, err := m.Header.MarshalTo(dAtA[i:])
+		n37, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n35
+		i += n37
 	}
 	if len(m.Version) > 0 {
 		dAtA[i] = 0x12
@@ -6779,11 +6869,11 @@ func (m *AuthRoleGrantPermissionRequest) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0x12
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Perm.Size()))
-		n36, err := m.Perm.MarshalTo(dAtA[i:])
+		n38, err := m.Perm.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n36
+		i += n38
 	}
 	return i, nil
 }
@@ -6843,11 +6933,11 @@ func (m *AuthEnableResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n37, err := m.Header.MarshalTo(dAtA[i:])
+		n39, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n37
+		i += n39
 	}
 	return i, nil
 }
@@ -6871,11 +6961,11 @@ func (m *AuthDisableResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n38, err := m.Header.MarshalTo(dAtA[i:])
+		n40, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n38
+		i += n40
 	}
 	return i, nil
 }
@@ -6899,11 +6989,11 @@ func (m *AuthenticateResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n39, err := m.Header.MarshalTo(dAtA[i:])
+		n41, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n39
+		i += n41
 	}
 	if len(m.Token) > 0 {
 		dAtA[i] = 0x12
@@ -6933,11 +7023,11 @@ func (m *AuthUserAddResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n40, err := m.Header.MarshalTo(dAtA[i:])
+		n42, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n40
+		i += n42
 	}
 	return i, nil
 }
@@ -6961,11 +7051,11 @@ func (m *AuthUserGetResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n41, err := m.Header.MarshalTo(dAtA[i:])
+		n43, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n41
+		i += n43
 	}
 	if len(m.Roles) > 0 {
 		for _, s := range m.Roles {
@@ -7004,11 +7094,11 @@ func (m *AuthUserDeleteResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n42, err := m.Header.MarshalTo(dAtA[i:])
+		n44, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n42
+		i += n44
 	}
 	return i, nil
 }
@@ -7032,11 +7122,11 @@ func (m *AuthUserChangePasswordResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n43, err := m.Header.MarshalTo(dAtA[i:])
+		n45, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n43
+		i += n45
 	}
 	return i, nil
 }
@@ -7060,11 +7150,11 @@ func (m *AuthUserGrantRoleResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n44, err := m.Header.MarshalTo(dAtA[i:])
+		n46, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n44
+		i += n46
 	}
 	return i, nil
 }
@@ -7088,11 +7178,11 @@ func (m *AuthUserRevokeRoleResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n45, err := m.Header.MarshalTo(dAtA[i:])
+		n47, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n45
+		i += n47
 	}
 	return i, nil
 }
@@ -7116,11 +7206,11 @@ func (m *AuthRoleAddResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n46, err := m.Header.MarshalTo(dAtA[i:])
+		n48, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n46
+		i += n48
 	}
 	return i, nil
 }
@@ -7144,11 +7234,11 @@ func (m *AuthRoleGetResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n47, err := m.Header.MarshalTo(dAtA[i:])
+		n49, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n47
+		i += n49
 	}
 	if len(m.Perm) > 0 {
 		for _, msg := range m.Perm {
@@ -7184,11 +7274,11 @@ func (m *AuthRoleListResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n48, err := m.Header.MarshalTo(dAtA[i:])
+		n50, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n48
+		i += n50
 	}
 	if len(m.Roles) > 0 {
 		for _, s := range m.Roles {
@@ -7227,11 +7317,11 @@ func (m *AuthUserListResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n49, err := m.Header.MarshalTo(dAtA[i:])
+		n51, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n49
+		i += n51
 	}
 	if len(m.Users) > 0 {
 		for _, s := range m.Users {
@@ -7270,11 +7360,11 @@ func (m *AuthRoleDeleteResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n50, err := m.Header.MarshalTo(dAtA[i:])
+		n52, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n50
+		i += n52
 	}
 	return i, nil
 }
@@ -7298,11 +7388,11 @@ func (m *AuthRoleGrantPermissionResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n51, err := m.Header.MarshalTo(dAtA[i:])
+		n53, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n51
+		i += n53
 	}
 	return i, nil
 }
@@ -7326,11 +7416,11 @@ func (m *AuthRoleRevokePermissionResponse) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintRpc(dAtA, i, uint64(m.Header.Size()))
-		n52, err := m.Header.MarshalTo(dAtA[i:])
+		n54, err := m.Header.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n52
+		i += n54
 	}
 	return i, nil
 }
@@ -7561,6 +7651,15 @@ func (m *RequestOp_RequestDeleteRange) Size() (n int) {
 	}
 	return n
 }
+func (m *RequestOp_RequestTxn) Size() (n int) {
+	var l int
+	_ = l
+	if m.RequestTxn != nil {
+		l = m.RequestTxn.Size()
+		n += 1 + l + sovRpc(uint64(l))
+	}
+	return n
+}
 func (m *ResponseOp) Size() (n int) {
 	var l int
 	_ = l
@@ -7597,6 +7696,15 @@ func (m *ResponseOp_ResponseDeleteRange) Size() (n int) {
 	}
 	return n
 }
+func (m *ResponseOp_ResponseTxn) Size() (n int) {
+	var l int
+	_ = l
+	if m.ResponseTxn != nil {
+		l = m.ResponseTxn.Size()
+		n += 1 + l + sovRpc(uint64(l))
+	}
+	return n
+}
 func (m *Compare) Size() (n int) {
 	var l int
 	_ = l
@@ -9868,6 +9976,38 @@ func (m *RequestOp) Unmarshal(dAtA []byte) error {
 			}
 			m.Request = &RequestOp_RequestDeleteRange{v}
 			iNdEx = postIndex
+		case 4:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field RequestTxn", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowRpc
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= (int(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthRpc
+			}
+			postIndex := iNdEx + msglen
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			v := &TxnRequest{}
+			if err := v.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			m.Request = &RequestOp_RequestTxn{v}
+			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
 			skippy, err := skipRpc(dAtA[iNdEx:])
@@ -10014,6 +10154,38 @@ func (m *ResponseOp) Unmarshal(dAtA []byte) error {
 			}
 			m.Response = &ResponseOp_ResponseDeleteRange{v}
 			iNdEx = postIndex
+		case 4:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field ResponseTxn", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowRpc
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= (int(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthRpc
+			}
+			postIndex := iNdEx + msglen
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			v := &TxnResponse{}
+			if err := v.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			m.Response = &ResponseOp_ResponseTxn{v}
+			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
 			skippy, err := skipRpc(dAtA[iNdEx:])
@@ -17122,222 +17294,223 @@ var (
 func init() { proto.RegisterFile("rpc.proto", fileDescriptorRpc) }
 
 var fileDescriptorRpc = []byte{
-	// 3459 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xbc, 0x3b, 0x5b, 0x6f, 0x1b, 0xc7,
-	0xb9, 0x5a, 0x52, 0xbc, 0x7d, 0xbc, 0x88, 0x1e, 0xc9, 0x36, 0x45, 0xdb, 0xb2, 0x3c, 0xbe, 0xc9,
-	0x76, 0x22, 0x25, 0x4a, 0xce, 0x79, 0xf0, 0x09, 0x82, 0x23, 0x4b, 0x8c, 0xa5, 0x48, 0x96, 0x9c,
-	0x95, 0xec, 0xe4, 0x00, 0xc1, 0x21, 0x56, 0xe4, 0x98, 0x5a, 0x88, 0xdc, 0x65, 0x76, 0x97, 0xb4,
-	0x94, 0x93, 0x03, 0x14, 0x69, 0x82, 0xa2, 0x05, 0xfa, 0xd2, 0x3c, 0xf4, 0xf6, 0x58, 0x14, 0x45,
-	0x7f, 0x40, 0xdf, 0xfa, 0x5c, 0x14, 0x7d, 0x69, 0x81, 0xfe, 0x81, 0x22, 0xed, 0x63, 0xdf, 0xfb,
-	0x54, 0xb4, 0x98, 0xdb, 0xee, 0xec, 0x72, 0x97, 0x52, 0xca, 0x26, 0x2f, 0xd6, 0xce, 0x37, 0xdf,
-	0x7c, 0xb7, 0x99, 0xef, 0x32, 0xdf, 0xd0, 0x50, 0x70, 0xfa, 0xad, 0xe5, 0xbe, 0x63, 0x7b, 0x36,
-	0x2a, 0x11, 0xaf, 0xd5, 0x76, 0x89, 0x33, 0x24, 0x4e, 0xff, 0xb0, 0x3e, 0xd7, 0xb1, 0x3b, 0x36,
-	0x9b, 0x58, 0xa1, 0x5f, 0x1c, 0xa7, 0x3e, 0x4f, 0x71, 0x56, 0x7a, 0xc3, 0x56, 0x8b, 0xfd, 0xd3,
-	0x3f, 0x5c, 0x39, 0x1e, 0x8a, 0xa9, 0x2b, 0x6c, 0xca, 0x18, 0x78, 0x47, 0xec, 0x9f, 0xfe, 0x21,
-	0xfb, 0x23, 0x26, 0xaf, 0x76, 0x6c, 0xbb, 0xd3, 0x25, 0x2b, 0x46, 0xdf, 0x5c, 0x31, 0x2c, 0xcb,
-	0xf6, 0x0c, 0xcf, 0xb4, 0x2d, 0x97, 0xcf, 0xe2, 0xcf, 0x35, 0xa8, 0xe8, 0xc4, 0xed, 0xdb, 0x96,
-	0x4b, 0x36, 0x89, 0xd1, 0x26, 0x0e, 0xba, 0x06, 0xd0, 0xea, 0x0e, 0x5c, 0x8f, 0x38, 0x4d, 0xb3,
-	0x5d, 0xd3, 0x16, 0xb5, 0xa5, 0x69, 0xbd, 0x20, 0x20, 0x5b, 0x6d, 0x74, 0x05, 0x0a, 0x3d, 0xd2,
-	0x3b, 0xe4, 0xb3, 0x29, 0x36, 0x9b, 0xe7, 0x80, 0xad, 0x36, 0xaa, 0x43, 0xde, 0x21, 0x43, 0xd3,
-	0x35, 0x6d, 0xab, 0x96, 0x5e, 0xd4, 0x96, 0xd2, 0xba, 0x3f, 0xa6, 0x0b, 0x1d, 0xe3, 0x85, 0xd7,
-	0xf4, 0x88, 0xd3, 0xab, 0x4d, 0xf3, 0x85, 0x14, 0x70, 0x40, 0x9c, 0x1e, 0xfe, 0x2c, 0x03, 0x25,
-	0xdd, 0xb0, 0x3a, 0x44, 0x27, 0x1f, 0x0d, 0x88, 0xeb, 0xa1, 0x2a, 0xa4, 0x8f, 0xc9, 0x29, 0x63,
-	0x5f, 0xd2, 0xe9, 0x27, 0x5f, 0x6f, 0x75, 0x48, 0x93, 0x58, 0x9c, 0x71, 0x89, 0xae, 0xb7, 0x3a,
-	0xa4, 0x61, 0xb5, 0xd1, 0x1c, 0x64, 0xba, 0x66, 0xcf, 0xf4, 0x04, 0x57, 0x3e, 0x08, 0x89, 0x33,
-	0x1d, 0x11, 0x67, 0x1d, 0xc0, 0xb5, 0x1d, 0xaf, 0x69, 0x3b, 0x6d, 0xe2, 0xd4, 0x32, 0x8b, 0xda,
-	0x52, 0x65, 0xf5, 0xd6, 0xb2, 0xba, 0x11, 0xcb, 0xaa, 0x40, 0xcb, 0xfb, 0xb6, 0xe3, 0xed, 0x51,
-	0x5c, 0xbd, 0xe0, 0xca, 0x4f, 0xf4, 0x0e, 0x14, 0x19, 0x11, 0xcf, 0x70, 0x3a, 0xc4, 0xab, 0x65,
-	0x19, 0x95, 0xdb, 0x67, 0x50, 0x39, 0x60, 0xc8, 0x3a, 0x63, 0xcf, 0xbf, 0x11, 0x86, 0x92, 0x4b,
-	0x1c, 0xd3, 0xe8, 0x9a, 0x1f, 0x1b, 0x87, 0x5d, 0x52, 0xcb, 0x2d, 0x6a, 0x4b, 0x79, 0x3d, 0x04,
-	0xa3, 0xfa, 0x1f, 0x93, 0x53, 0xb7, 0x69, 0x5b, 0xdd, 0xd3, 0x5a, 0x9e, 0x21, 0xe4, 0x29, 0x60,
-	0xcf, 0xea, 0x9e, 0xb2, 0x4d, 0xb3, 0x07, 0x96, 0xc7, 0x67, 0x0b, 0x6c, 0xb6, 0xc0, 0x20, 0x6c,
-	0x7a, 0x09, 0xaa, 0x3d, 0xd3, 0x6a, 0xf6, 0xec, 0x76, 0xd3, 0x37, 0x08, 0x30, 0x83, 0x54, 0x7a,
-	0xa6, 0xf5, 0xc4, 0x6e, 0xeb, 0xd2, 0x2c, 0x14, 0xd3, 0x38, 0x09, 0x63, 0x16, 0x05, 0xa6, 0x71,
-	0xa2, 0x62, 0x2e, 0xc3, 0x2c, 0xa5, 0xd9, 0x72, 0x88, 0xe1, 0x91, 0x00, 0xb9, 0xc4, 0x90, 0x2f,
-	0xf4, 0x4c, 0x6b, 0x9d, 0xcd, 0x84, 0xf0, 0x8d, 0x93, 0x11, 0xfc, 0xb2, 0xc0, 0x37, 0x4e, 0xc2,
-	0xf8, 0x78, 0x19, 0x0a, 0xbe, 0xcd, 0x51, 0x1e, 0xa6, 0x77, 0xf7, 0x76, 0x1b, 0xd5, 0x29, 0x04,
-	0x90, 0x5d, 0xdb, 0x5f, 0x6f, 0xec, 0x6e, 0x54, 0x35, 0x54, 0x84, 0xdc, 0x46, 0x83, 0x0f, 0x52,
-	0xf8, 0x11, 0x40, 0x60, 0x5d, 0x94, 0x83, 0xf4, 0x76, 0xe3, 0x7f, 0xaa, 0x53, 0x14, 0xe7, 0x79,
-	0x43, 0xdf, 0xdf, 0xda, 0xdb, 0xad, 0x6a, 0x74, 0xf1, 0xba, 0xde, 0x58, 0x3b, 0x68, 0x54, 0x53,
-	0x14, 0xe3, 0xc9, 0xde, 0x46, 0x35, 0x8d, 0x0a, 0x90, 0x79, 0xbe, 0xb6, 0xf3, 0xac, 0x51, 0x9d,
-	0xc6, 0x5f, 0x68, 0x50, 0x16, 0xfb, 0xc5, 0x7d, 0x02, 0xbd, 0x09, 0xd9, 0x23, 0xe6, 0x17, 0xec,
-	0x28, 0x16, 0x57, 0xaf, 0x46, 0x36, 0x37, 0xe4, 0x3b, 0xba, 0xc0, 0x45, 0x18, 0xd2, 0xc7, 0x43,
-	0xb7, 0x96, 0x5a, 0x4c, 0x2f, 0x15, 0x57, 0xab, 0xcb, 0xdc, 0x61, 0x97, 0xb7, 0xc9, 0xe9, 0x73,
-	0xa3, 0x3b, 0x20, 0x3a, 0x9d, 0x44, 0x08, 0xa6, 0x7b, 0xb6, 0x43, 0xd8, 0x89, 0xcd, 0xeb, 0xec,
-	0x9b, 0x1e, 0x63, 0xb6, 0x69, 0xe2, 0xb4, 0xf2, 0x01, 0xfe, 0xa5, 0x06, 0xf0, 0x74, 0xe0, 0x25,
-	0xbb, 0xc6, 0x1c, 0x64, 0x86, 0x94, 0xb0, 0x70, 0x0b, 0x3e, 0x60, 0x3e, 0x41, 0x0c, 0x97, 0xf8,
-	0x3e, 0x41, 0x07, 0xe8, 0x32, 0xe4, 0xfa, 0x0e, 0x19, 0x36, 0x8f, 0x87, 0x8c, 0x49, 0x5e, 0xcf,
-	0xd2, 0xe1, 0xf6, 0x10, 0xdd, 0x80, 0x92, 0xd9, 0xb1, 0x6c, 0x87, 0x34, 0x39, 0xad, 0x0c, 0x9b,
-	0x2d, 0x72, 0x18, 0x93, 0x5b, 0x41, 0xe1, 0x84, 0xb3, 0x2a, 0xca, 0x0e, 0x05, 0x61, 0x0b, 0x8a,
-	0x4c, 0xd4, 0x89, 0xcc, 0x77, 0x2f, 0x90, 0x31, 0xc5, 0x96, 0x8d, 0x9a, 0x50, 0x48, 0x8d, 0x3f,
-	0x04, 0xb4, 0x41, 0xba, 0xc4, 0x23, 0x93, 0x44, 0x0f, 0xc5, 0x26, 0x69, 0xd5, 0x26, 0xf8, 0x07,
-	0x1a, 0xcc, 0x86, 0xc8, 0x4f, 0xa4, 0x56, 0x0d, 0x72, 0x6d, 0x46, 0x8c, 0x4b, 0x90, 0xd6, 0xe5,
-	0x10, 0x3d, 0x80, 0xbc, 0x10, 0xc0, 0xad, 0xa5, 0x13, 0x0e, 0x4d, 0x8e, 0xcb, 0xe4, 0xe2, 0xbf,
-	0x6a, 0x50, 0x10, 0x8a, 0xee, 0xf5, 0xd1, 0x1a, 0x94, 0x1d, 0x3e, 0x68, 0x32, 0x7d, 0x84, 0x44,
-	0xf5, 0xe4, 0x20, 0xb4, 0x39, 0xa5, 0x97, 0xc4, 0x12, 0x06, 0x46, 0xff, 0x05, 0x45, 0x49, 0xa2,
-	0x3f, 0xf0, 0x84, 0xc9, 0x6b, 0x61, 0x02, 0xc1, 0xf9, 0xdb, 0x9c, 0xd2, 0x41, 0xa0, 0x3f, 0x1d,
-	0x78, 0xe8, 0x00, 0xe6, 0xe4, 0x62, 0xae, 0x8d, 0x10, 0x23, 0xcd, 0xa8, 0x2c, 0x86, 0xa9, 0x8c,
-	0x6e, 0xd5, 0xe6, 0x94, 0x8e, 0xc4, 0x7a, 0x65, 0xf2, 0x51, 0x01, 0x72, 0x02, 0x8a, 0xff, 0xa6,
-	0x01, 0x48, 0x83, 0xee, 0xf5, 0xd1, 0x06, 0x54, 0x1c, 0x31, 0x0a, 0x29, 0x7c, 0x25, 0x56, 0x61,
-	0xb1, 0x0f, 0x53, 0x7a, 0x59, 0x2e, 0xe2, 0x2a, 0xbf, 0x0d, 0x25, 0x9f, 0x4a, 0xa0, 0xf3, 0x7c,
-	0x8c, 0xce, 0x3e, 0x85, 0xa2, 0x5c, 0x40, 0xb5, 0x7e, 0x1f, 0x2e, 0xfa, 0xeb, 0x63, 0xd4, 0xbe,
-	0x31, 0x46, 0x6d, 0x9f, 0xe0, 0xac, 0xa4, 0xa0, 0x2a, 0x0e, 0x34, 0x65, 0x71, 0x30, 0xfe, 0x4d,
-	0x1a, 0x72, 0xeb, 0x76, 0xaf, 0x6f, 0x38, 0x74, 0x8f, 0xb2, 0x0e, 0x71, 0x07, 0x5d, 0x8f, 0xa9,
-	0x5b, 0x59, 0xbd, 0x19, 0xe6, 0x20, 0xd0, 0xe4, 0x5f, 0x9d, 0xa1, 0xea, 0x62, 0x09, 0x5d, 0x2c,
-	0x32, 0x54, 0xea, 0x1c, 0x8b, 0x45, 0x7e, 0x12, 0x4b, 0xa4, 0x2f, 0xa5, 0x03, 0x5f, 0xaa, 0x43,
-	0x6e, 0x48, 0x9c, 0x20, 0xab, 0x6e, 0x4e, 0xe9, 0x12, 0x80, 0xee, 0xc1, 0x4c, 0x34, 0xc2, 0x67,
-	0x04, 0x4e, 0xa5, 0x15, 0x4e, 0x08, 0x37, 0xa1, 0x14, 0x4a, 0x33, 0x59, 0x81, 0x57, 0xec, 0x29,
-	0x59, 0xe6, 0x92, 0x0c, 0x6d, 0x34, 0x25, 0x96, 0x36, 0xa7, 0x64, 0x70, 0x0b, 0xf9, 0x73, 0x3e,
-	0xec, 0xcf, 0xf8, 0xbf, 0xa1, 0x1c, 0x32, 0x04, 0x0d, 0xf1, 0x8d, 0xf7, 0x9e, 0xad, 0xed, 0xf0,
-	0x7c, 0xf0, 0x98, 0xa5, 0x00, 0xbd, 0xaa, 0xd1, 0xb4, 0xb2, 0xd3, 0xd8, 0xdf, 0xaf, 0xa6, 0x50,
-	0x19, 0x0a, 0xbb, 0x7b, 0x07, 0x4d, 0x8e, 0x95, 0xc6, 0x6f, 0xf9, 0x14, 0x44, 0x3e, 0x51, 0xd2,
-	0xc8, 0x94, 0x92, 0x46, 0x34, 0x99, 0x46, 0x52, 0x41, 0x1a, 0x49, 0x3f, 0xaa, 0x40, 0x89, 0x1b,
-	0xaf, 0x39, 0xb0, 0x68, 0x2a, 0xfb, 0x99, 0x06, 0x70, 0x70, 0x62, 0xc9, 0xe8, 0xb4, 0x02, 0xb9,
-	0x16, 0x27, 0x5e, 0xd3, 0x98, 0xb3, 0x5f, 0x8c, 0xdd, 0x0f, 0x5d, 0x62, 0xa1, 0xd7, 0x21, 0xe7,
-	0x0e, 0x5a, 0x2d, 0xe2, 0xca, 0x94, 0x72, 0x39, 0x1a, 0x6f, 0x44, 0x34, 0xd0, 0x25, 0x1e, 0x5d,
-	0xf2, 0xc2, 0x30, 0xbb, 0x03, 0x96, 0x60, 0xc6, 0x2f, 0x11, 0x78, 0xf8, 0xc7, 0x1a, 0x14, 0x99,
-	0x94, 0x13, 0x05, 0xb9, 0xab, 0x50, 0x60, 0x32, 0x90, 0xb6, 0x08, 0x73, 0x79, 0x3d, 0x00, 0xa0,
-	0xff, 0x84, 0x82, 0x3c, 0xde, 0x32, 0xd2, 0xd5, 0xe2, 0xc9, 0xee, 0xf5, 0xf5, 0x00, 0x15, 0x6f,
-	0xc3, 0x05, 0x66, 0x95, 0x16, 0x2d, 0x5e, 0xa5, 0x1d, 0xd5, 0xf2, 0x4e, 0x8b, 0x94, 0x77, 0x75,
-	0xc8, 0xf7, 0x8f, 0x4e, 0x5d, 0xb3, 0x65, 0x74, 0x85, 0x14, 0xfe, 0x18, 0xbf, 0x0b, 0x48, 0x25,
-	0x36, 0x89, 0xba, 0xb8, 0x0c, 0xc5, 0x4d, 0xc3, 0x3d, 0x12, 0x22, 0xe1, 0x0f, 0xa0, 0xc4, 0x87,
-	0x13, 0xd9, 0x10, 0xc1, 0xf4, 0x91, 0xe1, 0x1e, 0x31, 0xc1, 0xcb, 0x3a, 0xfb, 0xc6, 0x17, 0x60,
-	0x66, 0xdf, 0x32, 0xfa, 0xee, 0x91, 0x2d, 0x03, 0x31, 0x2d, 0xde, 0xab, 0x01, 0x6c, 0x22, 0x8e,
-	0x77, 0x61, 0xc6, 0x21, 0x3d, 0xc3, 0xb4, 0x4c, 0xab, 0xd3, 0x3c, 0x3c, 0xf5, 0x88, 0x2b, 0x6a,
-	0xfb, 0x8a, 0x0f, 0x7e, 0x44, 0xa1, 0x54, 0xb4, 0xc3, 0xae, 0x7d, 0x28, 0xc2, 0x01, 0xfb, 0xc6,
-	0xbf, 0xd2, 0xa0, 0xf4, 0xbe, 0xe1, 0xb5, 0xa4, 0x15, 0xd0, 0x16, 0x54, 0xfc, 0x20, 0xc0, 0x20,
-	0x42, 0x96, 0x48, 0x36, 0x60, 0x6b, 0x64, 0xd5, 0x27, 0xb3, 0x41, 0xb9, 0xa5, 0x02, 0x18, 0x29,
-	0xc3, 0x6a, 0x91, 0xae, 0x4f, 0x2a, 0x95, 0x4c, 0x8a, 0x21, 0xaa, 0xa4, 0x54, 0xc0, 0xa3, 0x99,
-	0x20, 0x53, 0x72, 0xb7, 0xfc, 0x49, 0x0a, 0xd0, 0xa8, 0x0c, 0x5f, 0xb5, 0x78, 0xb8, 0x0d, 0x15,
-	0xd7, 0x33, 0x1c, 0xaf, 0x19, 0xb9, 0xf9, 0x94, 0x19, 0xd4, 0x0f, 0x64, 0x77, 0x61, 0xa6, 0xef,
-	0xd8, 0x1d, 0x87, 0xb8, 0x6e, 0xd3, 0xb2, 0x3d, 0xf3, 0xc5, 0xa9, 0xa8, 0xbf, 0x2a, 0x12, 0xbc,
-	0xcb, 0xa0, 0xa8, 0x01, 0xb9, 0x17, 0x66, 0xd7, 0x23, 0x8e, 0x5b, 0xcb, 0x2c, 0xa6, 0x97, 0x2a,
-	0xab, 0x0f, 0xce, 0xb2, 0xda, 0xf2, 0x3b, 0x0c, 0xff, 0xe0, 0xb4, 0x4f, 0x74, 0xb9, 0x56, 0xad,
-	0x69, 0xb2, 0xa1, 0x9a, 0xe6, 0x36, 0x40, 0x80, 0x4f, 0xa3, 0xd6, 0xee, 0xde, 0xd3, 0x67, 0x07,
-	0xd5, 0x29, 0x54, 0x82, 0xfc, 0xee, 0xde, 0x46, 0x63, 0xa7, 0x41, 0xe3, 0x1a, 0x5e, 0x91, 0xb6,
-	0x51, 0x6d, 0x88, 0xe6, 0x21, 0xff, 0x92, 0x42, 0xe5, 0xd5, 0x30, 0xad, 0xe7, 0xd8, 0x78, 0xab,
-	0x8d, 0xbf, 0x9f, 0x82, 0xb2, 0x38, 0x05, 0x13, 0x1d, 0x45, 0x95, 0x45, 0x2a, 0xc4, 0x82, 0x16,
-	0x50, 0xfc, 0x74, 0xb4, 0x45, 0x9d, 0x26, 0x87, 0xd4, 0xdd, 0xf9, 0x66, 0x93, 0xb6, 0x30, 0xab,
-	0x3f, 0x46, 0xf7, 0xa0, 0xda, 0xe2, 0xee, 0x1e, 0xc9, 0x49, 0xfa, 0x8c, 0x80, 0x2b, 0x29, 0xa9,
-	0xec, 0x9f, 0x36, 0xc3, 0x15, 0x39, 0xa9, 0xa0, 0x97, 0xe4, 0x41, 0xa2, 0x30, 0x74, 0x1b, 0xb2,
-	0x64, 0x48, 0x2c, 0xcf, 0xad, 0x15, 0x59, 0x00, 0x2b, 0xcb, 0x52, 0xad, 0x41, 0xa1, 0xba, 0x98,
-	0xc4, 0xff, 0x01, 0x17, 0x58, 0x49, 0xfc, 0xd8, 0x31, 0x2c, 0xb5, 0x76, 0x3f, 0x38, 0xd8, 0x11,
-	0xa6, 0xa3, 0x9f, 0xa8, 0x02, 0xa9, 0xad, 0x0d, 0xa1, 0x68, 0x6a, 0x6b, 0x03, 0x7f, 0xaa, 0x01,
-	0x52, 0xd7, 0x4d, 0x64, 0xcb, 0x08, 0x71, 0xc9, 0x3e, 0x1d, 0xb0, 0x9f, 0x83, 0x0c, 0x71, 0x1c,
-	0xdb, 0x61, 0x56, 0x2b, 0xe8, 0x7c, 0x80, 0x6f, 0x09, 0x19, 0x74, 0x32, 0xb4, 0x8f, 0x7d, 0xc7,
-	0xe0, 0xd4, 0x34, 0x5f, 0xd4, 0x6d, 0x98, 0x0d, 0x61, 0x4d, 0x14, 0x48, 0xef, 0xc2, 0x45, 0x46,
-	0x6c, 0x9b, 0x90, 0xfe, 0x5a, 0xd7, 0x1c, 0x26, 0x72, 0xed, 0xc3, 0xa5, 0x28, 0xe2, 0xd7, 0x6b,
-	0x23, 0xfc, 0x96, 0xe0, 0x78, 0x60, 0xf6, 0xc8, 0x81, 0xbd, 0x93, 0x2c, 0x1b, 0x8d, 0x8e, 0xf4,
-	0x4a, 0x2e, 0x32, 0x0e, 0xfb, 0xc6, 0x3f, 0xd7, 0xe0, 0xf2, 0xc8, 0xf2, 0xaf, 0x79, 0x57, 0x17,
-	0x00, 0x3a, 0xf4, 0xf8, 0x90, 0x36, 0x9d, 0xe0, 0x97, 0x49, 0x05, 0xe2, 0xcb, 0x49, 0x03, 0x4c,
-	0x49, 0xc8, 0x79, 0x04, 0xd9, 0x27, 0xac, 0x8f, 0xa3, 0x68, 0x35, 0x2d, 0xb5, 0xb2, 0x8c, 0x1e,
-	0xbf, 0x5d, 0x16, 0x74, 0xf6, 0xcd, 0xf2, 0x2b, 0x21, 0xce, 0x33, 0x7d, 0x87, 0xe7, 0xf1, 0x82,
-	0xee, 0x8f, 0x29, 0xf7, 0x56, 0xd7, 0x24, 0x96, 0xc7, 0x66, 0xa7, 0xd9, 0xac, 0x02, 0xc1, 0xcb,
-	0x50, 0xe5, 0x9c, 0xd6, 0xda, 0x6d, 0x25, 0x97, 0xfb, 0xf4, 0xb4, 0x30, 0x3d, 0xfc, 0x0b, 0x0d,
-	0x2e, 0x28, 0x0b, 0x26, 0xb2, 0xdd, 0x2b, 0x90, 0xe5, 0xdd, 0x2a, 0x91, 0x47, 0xe6, 0xc2, 0xab,
-	0x38, 0x1b, 0x5d, 0xe0, 0xa0, 0x65, 0xc8, 0xf1, 0x2f, 0x59, 0xac, 0xc4, 0xa3, 0x4b, 0x24, 0x7c,
-	0x1b, 0x66, 0x05, 0x88, 0xf4, 0xec, 0xb8, 0x63, 0xc2, 0x0c, 0x8a, 0x3f, 0x81, 0xb9, 0x30, 0xda,
-	0x44, 0x2a, 0x29, 0x42, 0xa6, 0xce, 0x23, 0xe4, 0x9a, 0x14, 0xf2, 0x59, 0xbf, 0xad, 0xa4, 0xbd,
-	0xe8, 0xae, 0xab, 0x3b, 0x92, 0x8a, 0xec, 0x88, 0xaf, 0x80, 0x24, 0xf1, 0x8d, 0x2a, 0x30, 0x2b,
-	0x8f, 0xc3, 0x8e, 0xe9, 0xfa, 0xc5, 0xd0, 0xc7, 0x80, 0x54, 0xe0, 0x37, 0x2d, 0xd0, 0x06, 0x79,
-	0xe1, 0x18, 0x9d, 0x1e, 0xf1, 0x43, 0x3d, 0xad, 0x32, 0x55, 0xe0, 0x44, 0xc1, 0xf1, 0xf7, 0x1a,
-	0x94, 0xd6, 0xba, 0x86, 0xd3, 0x93, 0x9b, 0xf5, 0x36, 0x64, 0x79, 0xf9, 0x2a, 0xae, 0x83, 0x77,
-	0xc2, 0x64, 0x54, 0x5c, 0x3e, 0x58, 0xe3, 0xc5, 0xae, 0x58, 0x45, 0x37, 0x57, 0x34, 0x6d, 0x37,
-	0x22, 0x4d, 0xdc, 0x0d, 0xf4, 0x2a, 0x64, 0x0c, 0xba, 0x84, 0x05, 0x94, 0x4a, 0xf4, 0xe2, 0xc0,
-	0xa8, 0xb1, 0x52, 0x83, 0x63, 0xe1, 0x37, 0xa1, 0xa8, 0x70, 0xa0, 0xf7, 0xa1, 0xc7, 0x0d, 0x51,
-	0x4e, 0xac, 0xad, 0x1f, 0x6c, 0x3d, 0xe7, 0xd7, 0xa4, 0x0a, 0xc0, 0x46, 0xc3, 0x1f, 0xa7, 0xf0,
-	0x07, 0x62, 0x95, 0x08, 0x39, 0xaa, 0x3c, 0x5a, 0x92, 0x3c, 0xa9, 0x73, 0xc9, 0x73, 0x02, 0x65,
-	0xa1, 0xfe, 0x44, 0x67, 0xe0, 0x75, 0xc8, 0x32, 0x7a, 0xf2, 0x08, 0xcc, 0xc7, 0xb0, 0x95, 0xd1,
-	0x82, 0x23, 0xe2, 0x19, 0x28, 0xef, 0x7b, 0x86, 0x37, 0x70, 0xe5, 0x11, 0xf8, 0x9d, 0x06, 0x15,
-	0x09, 0x99, 0xb4, 0x73, 0x24, 0x6f, 0xdc, 0x3c, 0x08, 0xfb, 0xf7, 0xed, 0x4b, 0x90, 0x6d, 0x1f,
-	0xee, 0x9b, 0x1f, 0xcb, 0x2e, 0x9f, 0x18, 0x51, 0x78, 0x97, 0xf3, 0xe1, 0xad, 0x76, 0x31, 0xa2,
-	0xd7, 0x33, 0xc7, 0x78, 0xe1, 0x6d, 0x59, 0x6d, 0x72, 0xc2, 0xaa, 0xa0, 0x69, 0x3d, 0x00, 0xb0,
-	0x1b, 0x95, 0x68, 0xc9, 0xb3, 0xd2, 0x47, 0x6d, 0xd1, 0xcf, 0xc2, 0x85, 0xb5, 0x81, 0x77, 0xd4,
-	0xb0, 0x8c, 0xc3, 0xae, 0x0c, 0x1a, 0x78, 0x0e, 0x10, 0x05, 0x6e, 0x98, 0xae, 0x0a, 0x6d, 0xc0,
-	0x2c, 0x85, 0x12, 0xcb, 0x33, 0x5b, 0x4a, 0x84, 0x91, 0x79, 0x44, 0x8b, 0xe4, 0x11, 0xc3, 0x75,
-	0x5f, 0xda, 0x4e, 0x5b, 0xa8, 0xe6, 0x8f, 0xf1, 0x06, 0x27, 0xfe, 0xcc, 0x0d, 0x65, 0x8a, 0xaf,
-	0x4a, 0x65, 0x29, 0xa0, 0xf2, 0x98, 0x78, 0x63, 0xa8, 0xe0, 0x07, 0x70, 0x51, 0x62, 0x8a, 0x96,
-	0xcc, 0x18, 0xe4, 0x3d, 0xb8, 0x26, 0x91, 0xd7, 0x8f, 0xe8, 0x5d, 0xe0, 0xa9, 0x60, 0xf8, 0xaf,
-	0xca, 0xf9, 0x08, 0x6a, 0xbe, 0x9c, 0xac, 0xf4, 0xb3, 0xbb, 0xaa, 0x00, 0x03, 0x57, 0x9c, 0x99,
-	0x82, 0xce, 0xbe, 0x29, 0xcc, 0xb1, 0xbb, 0x7e, 0x56, 0xa6, 0xdf, 0x78, 0x1d, 0xe6, 0x25, 0x0d,
-	0x51, 0x94, 0x85, 0x89, 0x8c, 0x08, 0x14, 0x47, 0x44, 0x18, 0x8c, 0x2e, 0x1d, 0x6f, 0x76, 0x15,
-	0x33, 0x6c, 0x5a, 0x46, 0x53, 0x53, 0x68, 0x5e, 0xe4, 0x27, 0x82, 0x0a, 0xa6, 0x06, 0x6d, 0x01,
-	0xa6, 0x04, 0x54, 0xb0, 0xd8, 0x08, 0x0a, 0x1e, 0xd9, 0x88, 0x11, 0xd2, 0x1f, 0xc2, 0x82, 0x2f,
-	0x04, 0xb5, 0xdb, 0x53, 0xe2, 0xf4, 0x4c, 0xd7, 0x55, 0xfa, 0x04, 0x71, 0x8a, 0xdf, 0x81, 0xe9,
-	0x3e, 0x11, 0x31, 0xa5, 0xb8, 0x8a, 0x96, 0xf9, 0xc3, 0xd9, 0xb2, 0xb2, 0x98, 0xcd, 0xe3, 0x36,
-	0x5c, 0x97, 0xd4, 0xb9, 0x45, 0x63, 0xc9, 0x47, 0x85, 0x92, 0x77, 0x48, 0x6e, 0xd6, 0xd1, 0x3b,
-	0x64, 0x9a, 0xef, 0xbd, 0xdf, 0xb0, 0x7a, 0x97, 0x1b, 0x52, 0xfa, 0xd6, 0x44, 0xb9, 0x62, 0x9b,
-	0xdb, 0xd4, 0x77, 0xc9, 0x89, 0x88, 0x1d, 0xc2, 0x5c, 0xd8, 0x93, 0x27, 0x0a, 0x63, 0x73, 0x90,
-	0xf1, 0xec, 0x63, 0x22, 0x83, 0x18, 0x1f, 0x48, 0x81, 0x7d, 0x37, 0x9f, 0x48, 0x60, 0x23, 0x20,
-	0xc6, 0x8e, 0xe4, 0xa4, 0xf2, 0xd2, 0xdd, 0x94, 0xf5, 0x0f, 0x1f, 0xe0, 0x5d, 0xb8, 0x14, 0x0d,
-	0x13, 0x13, 0x89, 0xfc, 0x9c, 0x1f, 0xe0, 0xb8, 0x48, 0x32, 0x11, 0xdd, 0xf7, 0x82, 0x60, 0xa0,
-	0x04, 0x94, 0x89, 0x48, 0xea, 0x50, 0x8f, 0x8b, 0x2f, 0xff, 0x8e, 0xf3, 0xea, 0x87, 0x9b, 0x89,
-	0x88, 0xb9, 0x01, 0xb1, 0xc9, 0xb7, 0x3f, 0x88, 0x11, 0xe9, 0xb1, 0x31, 0x42, 0x38, 0x49, 0x10,
-	0xc5, 0xbe, 0x86, 0x43, 0x27, 0x78, 0x04, 0x01, 0x74, 0x52, 0x1e, 0x34, 0x87, 0xf8, 0x3c, 0xd8,
-	0x40, 0x1e, 0x6c, 0x35, 0xec, 0x4e, 0xb4, 0x19, 0xef, 0x07, 0xb1, 0x73, 0x24, 0x32, 0x4f, 0x44,
-	0xf8, 0x03, 0x58, 0x4c, 0x0e, 0xca, 0x93, 0x50, 0xbe, 0x8f, 0xa1, 0xe0, 0x17, 0x94, 0xca, 0xa3,
-	0x73, 0x11, 0x72, 0xbb, 0x7b, 0xfb, 0x4f, 0xd7, 0xd6, 0x1b, 0x55, 0x6d, 0xf5, 0xef, 0x69, 0x48,
-	0x6d, 0x3f, 0x47, 0xff, 0x0b, 0x19, 0xfe, 0x96, 0x34, 0xe6, 0xa9, 0xad, 0x3e, 0xee, 0x55, 0x0a,
-	0x5f, 0xfd, 0xf4, 0x8f, 0x7f, 0xf9, 0x22, 0x75, 0x09, 0x5f, 0x58, 0x19, 0xbe, 0x61, 0x74, 0xfb,
-	0x47, 0xc6, 0xca, 0xf1, 0x70, 0x85, 0xe5, 0x84, 0x87, 0xda, 0x7d, 0xf4, 0x1c, 0xd2, 0x4f, 0x07,
-	0x1e, 0x4a, 0x7c, 0x87, 0xab, 0x27, 0xbf, 0x56, 0xe1, 0x3a, 0xa3, 0x3c, 0x87, 0x67, 0x54, 0xca,
-	0xfd, 0x81, 0x47, 0xe9, 0x0e, 0xa1, 0xa8, 0x3c, 0x38, 0xa1, 0x33, 0x5f, 0xe8, 0xea, 0x67, 0x3f,
-	0x66, 0x61, 0xcc, 0xf8, 0x5d, 0xc5, 0x97, 0x55, 0x7e, 0xfc, 0x5d, 0x4c, 0xd5, 0xe7, 0xe0, 0xc4,
-	0x8a, 0xea, 0x13, 0x3c, 0x8b, 0x44, 0xf5, 0x51, 0x9e, 0x22, 0xe2, 0xf5, 0xf1, 0x4e, 0x2c, 0x4a,
-	0xd7, 0x16, 0x8f, 0x64, 0x2d, 0x0f, 0x5d, 0x8f, 0x79, 0x47, 0x51, 0x5f, 0x0c, 0xea, 0x8b, 0xc9,
-	0x08, 0x82, 0xd3, 0x0d, 0xc6, 0xe9, 0x0a, 0xbe, 0xa4, 0x72, 0x6a, 0xf9, 0x78, 0x0f, 0xb5, 0xfb,
-	0xab, 0x47, 0x90, 0x61, 0x7d, 0x4e, 0xd4, 0x94, 0x1f, 0xf5, 0x98, 0x0e, 0x6d, 0xc2, 0x09, 0x08,
-	0x75, 0x48, 0xf1, 0x3c, 0xe3, 0x36, 0x8b, 0x2b, 0x3e, 0x37, 0xd6, 0xea, 0x7c, 0xa8, 0xdd, 0x5f,
-	0xd2, 0x5e, 0xd3, 0x56, 0xbf, 0x3d, 0x0d, 0x19, 0xd6, 0x3a, 0x42, 0x7d, 0x80, 0xa0, 0x29, 0x18,
-	0xd5, 0x73, 0xa4, 0xcd, 0x18, 0xd5, 0x73, 0xb4, 0x9f, 0x88, 0xaf, 0x33, 0xce, 0xf3, 0x78, 0xce,
-	0xe7, 0xcc, 0x9e, 0xf4, 0x57, 0x58, 0x93, 0x88, 0x9a, 0xf5, 0x25, 0x14, 0x95, 0xe6, 0x1e, 0x8a,
-	0xa3, 0x18, 0xea, 0x0e, 0x46, 0x8f, 0x49, 0x4c, 0x67, 0x10, 0xdf, 0x64, 0x4c, 0xaf, 0xe1, 0x9a,
-	0x6a, 0x5c, 0xce, 0xd7, 0x61, 0x98, 0x94, 0xf1, 0x67, 0x1a, 0x54, 0xc2, 0x0d, 0x3e, 0x74, 0x33,
-	0x86, 0x74, 0xb4, 0x4f, 0x58, 0xbf, 0x35, 0x1e, 0x29, 0x51, 0x04, 0xce, 0xff, 0x98, 0x90, 0xbe,
-	0x41, 0x31, 0x85, 0xed, 0xd1, 0x77, 0x34, 0x98, 0x89, 0xb4, 0xed, 0x50, 0x1c, 0x8b, 0x91, 0xa6,
-	0x60, 0xfd, 0xf6, 0x19, 0x58, 0x42, 0x92, 0xbb, 0x4c, 0x92, 0x1b, 0xf8, 0xea, 0xa8, 0x31, 0x3c,
-	0xb3, 0x47, 0x3c, 0x5b, 0x48, 0xb3, 0xfa, 0x8f, 0x34, 0xe4, 0xd6, 0xf9, 0xef, 0xaf, 0x90, 0x07,
-	0x05, 0xbf, 0x13, 0x86, 0x16, 0xe2, 0xba, 0x12, 0x41, 0xc9, 0x5e, 0xbf, 0x9e, 0x38, 0x2f, 0x44,
-	0xb8, 0xc3, 0x44, 0x58, 0xc4, 0x57, 0x7c, 0x11, 0xc4, 0xef, 0xbc, 0x56, 0xf8, 0xe5, 0x7b, 0xc5,
-	0x68, 0xb7, 0xe9, 0x96, 0x7c, 0x4b, 0x83, 0x92, 0xda, 0xb0, 0x42, 0x37, 0x62, 0xfb, 0x21, 0x6a,
-	0xcf, 0xab, 0x8e, 0xc7, 0xa1, 0x08, 0xfe, 0xf7, 0x18, 0xff, 0x9b, 0x78, 0x21, 0x89, 0xbf, 0xc3,
-	0xf0, 0xc3, 0x22, 0xf0, 0x96, 0x53, 0xbc, 0x08, 0xa1, 0x8e, 0x56, 0xbc, 0x08, 0xe1, 0x8e, 0xd5,
-	0xd9, 0x22, 0x0c, 0x18, 0x3e, 0x15, 0xe1, 0x04, 0x20, 0xe8, 0x30, 0xa1, 0x58, 0xe3, 0x2a, 0x97,
-	0x98, 0xa8, 0x0f, 0x8e, 0x36, 0xa7, 0x62, 0x4e, 0x40, 0x84, 0x77, 0xd7, 0x74, 0xa9, 0x2f, 0xae,
-	0xfe, 0x7a, 0x1a, 0x8a, 0x4f, 0x0c, 0xd3, 0xf2, 0x88, 0x65, 0x58, 0x2d, 0x82, 0x3a, 0x90, 0x61,
-	0x59, 0x2a, 0x1a, 0x78, 0xd4, 0xb6, 0x4f, 0x34, 0xf0, 0x84, 0x7a, 0x22, 0xf8, 0x36, 0x63, 0x7d,
-	0x1d, 0xd7, 0x7d, 0xd6, 0xbd, 0x80, 0xfe, 0x0a, 0xeb, 0x67, 0x50, 0x95, 0x8f, 0x21, 0xcb, 0xfb,
-	0x17, 0x28, 0x42, 0x2d, 0xd4, 0xe7, 0xa8, 0x5f, 0x8d, 0x9f, 0x4c, 0x3c, 0x65, 0x2a, 0x2f, 0x97,
-	0x21, 0x53, 0x66, 0xff, 0x07, 0x10, 0x34, 0xcc, 0xa2, 0xf6, 0x1d, 0xe9, 0xaf, 0xd5, 0x17, 0x93,
-	0x11, 0x04, 0xe3, 0xfb, 0x8c, 0xf1, 0x2d, 0x7c, 0x3d, 0x96, 0x71, 0xdb, 0x5f, 0x40, 0x99, 0xb7,
-	0x60, 0x7a, 0xd3, 0x70, 0x8f, 0x50, 0x24, 0x09, 0x29, 0x6f, 0xbb, 0xf5, 0x7a, 0xdc, 0x94, 0x60,
-	0x75, 0x8b, 0xb1, 0x5a, 0xc0, 0xf3, 0xb1, 0xac, 0x8e, 0x0c, 0x97, 0xc6, 0x74, 0x34, 0x80, 0xbc,
-	0x7c, 0xaf, 0x45, 0xd7, 0x22, 0x36, 0x0b, 0xbf, 0xed, 0xd6, 0x17, 0x92, 0xa6, 0x05, 0xc3, 0x25,
-	0xc6, 0x10, 0xe3, 0x6b, 0xf1, 0x46, 0x15, 0xe8, 0x0f, 0xb5, 0xfb, 0xaf, 0x69, 0xab, 0xdf, 0xab,
-	0xc2, 0x34, 0xad, 0x97, 0x68, 0x16, 0x09, 0xae, 0x99, 0x51, 0x0b, 0x8f, 0x34, 0x77, 0xa2, 0x16,
-	0x1e, 0xbd, 0xa1, 0xc6, 0x64, 0x11, 0xf6, 0x2b, 0x54, 0xc2, 0xb0, 0xa8, 0xc6, 0x1e, 0x14, 0x95,
-	0xcb, 0x28, 0x8a, 0xa1, 0x18, 0x6e, 0x1d, 0x45, 0xb3, 0x48, 0xcc, 0x4d, 0x16, 0x2f, 0x32, 0xa6,
-	0x75, 0x7c, 0x31, 0xcc, 0xb4, 0xcd, 0xd1, 0x28, 0xd7, 0x4f, 0xa0, 0xa4, 0xde, 0x5a, 0x51, 0x0c,
-	0xd1, 0x48, 0x6f, 0x2a, 0x1a, 0x2b, 0xe2, 0x2e, 0xbd, 0x31, 0x4e, 0xe3, 0xff, 0xe6, 0x56, 0xe2,
-	0x52, 0xee, 0x1f, 0x41, 0x4e, 0xdc, 0x65, 0xe3, 0xf4, 0x0d, 0x77, 0xb3, 0xe2, 0xf4, 0x8d, 0x5c,
-	0x84, 0x63, 0x4a, 0x12, 0xc6, 0x96, 0xd6, 0xec, 0x32, 0x40, 0x0b, 0x96, 0x8f, 0x89, 0x97, 0xc4,
-	0x32, 0xe8, 0xcf, 0x24, 0xb1, 0x54, 0xee, 0x4b, 0x63, 0x59, 0x76, 0x88, 0x27, 0xce, 0xb2, 0xbc,
-	0x8c, 0xa0, 0x04, 0x8a, 0x6a, 0x34, 0xc4, 0xe3, 0x50, 0x12, 0xab, 0xc8, 0x80, 0xab, 0x08, 0x85,
-	0xe8, 0xff, 0x01, 0x82, 0x8b, 0x77, 0xb4, 0x30, 0x88, 0xed, 0xde, 0x45, 0x0b, 0x83, 0xf8, 0xbb,
-	0x7b, 0x8c, 0x07, 0x07, 0xcc, 0x79, 0x25, 0x4b, 0xd9, 0xff, 0x50, 0x03, 0x34, 0x7a, 0x51, 0x47,
-	0x0f, 0xe2, 0x59, 0xc4, 0x36, 0x06, 0xeb, 0xaf, 0x9c, 0x0f, 0x39, 0x31, 0x7a, 0x06, 0x72, 0xb5,
-	0xd8, 0x92, 0xfe, 0x4b, 0x2a, 0xd9, 0xe7, 0x1a, 0x94, 0x43, 0x57, 0x7d, 0x74, 0x27, 0x61, 0x9f,
-	0x23, 0xcd, 0xc5, 0xfa, 0xdd, 0x33, 0xf1, 0x12, 0x6b, 0x27, 0xe5, 0x54, 0xc8, 0xba, 0xf1, 0xbb,
-	0x1a, 0x54, 0xc2, 0xfd, 0x01, 0x94, 0xc0, 0x60, 0xa4, 0x43, 0x59, 0x5f, 0x3a, 0x1b, 0xf1, 0x1c,
-	0xbb, 0x15, 0x94, 0x92, 0x1f, 0x41, 0x4e, 0xb4, 0x15, 0xe2, 0xdc, 0x22, 0xdc, 0xe0, 0x8c, 0x73,
-	0x8b, 0x48, 0x4f, 0x22, 0xc9, 0x2d, 0xe8, 0x0d, 0x5d, 0xf1, 0x44, 0xd1, 0x7c, 0x48, 0x62, 0x39,
-	0xde, 0x13, 0x23, 0x9d, 0x8b, 0xb1, 0x2c, 0x03, 0x4f, 0x94, 0xad, 0x07, 0x94, 0x40, 0xf1, 0x0c,
-	0x4f, 0x8c, 0x76, 0x2e, 0x92, 0x3c, 0x91, 0x71, 0x55, 0x3c, 0x31, 0xe8, 0x14, 0xc4, 0x79, 0xe2,
-	0x48, 0xfb, 0x36, 0xce, 0x13, 0x47, 0x9b, 0x0d, 0x49, 0x7b, 0xcb, 0x98, 0x87, 0x3c, 0x71, 0x36,
-	0xa6, 0xb3, 0x80, 0x5e, 0x49, 0xb0, 0x69, 0x6c, 0x6b, 0xb8, 0xfe, 0xea, 0x39, 0xb1, 0xc7, 0x7b,
-	0x00, 0xdf, 0x0d, 0xe9, 0x01, 0x3f, 0xd5, 0x60, 0x2e, 0xae, 0x35, 0x81, 0x12, 0x98, 0x25, 0xf4,
-	0x95, 0xeb, 0xcb, 0xe7, 0x45, 0x3f, 0x87, 0xdd, 0x7c, 0x9f, 0x78, 0x54, 0xfd, 0xed, 0x97, 0x0b,
-	0xda, 0x1f, 0xbe, 0x5c, 0xd0, 0xfe, 0xf4, 0xe5, 0x82, 0xf6, 0xa3, 0x3f, 0x2f, 0x4c, 0x1d, 0x66,
-	0xd9, 0x7f, 0x05, 0x79, 0xe3, 0x9f, 0x01, 0x00, 0x00, 0xff, 0xff, 0xe5, 0x0a, 0xcf, 0x02, 0x91,
-	0x32, 0x00, 0x00,
+	// 3487 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xbc, 0x5b, 0xdd, 0x6f, 0x1b, 0xc7,
+	0xb5, 0xd7, 0x92, 0x12, 0x29, 0x1e, 0x7e, 0x88, 0x1e, 0xc9, 0x36, 0xb5, 0xb6, 0x65, 0x79, 0xfc,
+	0x25, 0xdb, 0x89, 0x94, 0x28, 0xb9, 0xf7, 0xc1, 0x37, 0x08, 0xae, 0x2c, 0x31, 0x96, 0x22, 0x59,
+	0x72, 0x56, 0xb2, 0x93, 0x0b, 0x04, 0x97, 0x58, 0x91, 0x63, 0x6a, 0x21, 0x72, 0x97, 0xd9, 0x5d,
+	0xd2, 0x52, 0x6e, 0x2e, 0x70, 0x91, 0x9b, 0xa0, 0x68, 0x81, 0xbe, 0x34, 0x0f, 0xfd, 0x7a, 0x2c,
+	0x8a, 0x22, 0x7f, 0x40, 0xd1, 0x97, 0x3e, 0x17, 0x45, 0x5f, 0x5a, 0xa0, 0xff, 0x40, 0x91, 0xf6,
+	0xdf, 0x28, 0x5a, 0xcc, 0xd7, 0xee, 0xec, 0x72, 0x97, 0x52, 0xc2, 0x26, 0x2f, 0xd6, 0xce, 0x99,
+	0x33, 0xe7, 0x77, 0xe6, 0xcc, 0x9c, 0x73, 0x66, 0xce, 0xd0, 0x50, 0x70, 0x7b, 0xcd, 0xe5, 0x9e,
+	0xeb, 0xf8, 0x0e, 0x2a, 0x11, 0xbf, 0xd9, 0xf2, 0x88, 0x3b, 0x20, 0x6e, 0xef, 0x50, 0x9f, 0x6b,
+	0x3b, 0x6d, 0x87, 0x75, 0xac, 0xd0, 0x2f, 0xce, 0xa3, 0xcf, 0x53, 0x9e, 0x95, 0xee, 0xa0, 0xd9,
+	0x64, 0xff, 0xf4, 0x0e, 0x57, 0x8e, 0x07, 0xa2, 0xeb, 0x0a, 0xeb, 0x32, 0xfb, 0xfe, 0x11, 0xfb,
+	0xa7, 0x77, 0xc8, 0xfe, 0x88, 0xce, 0xab, 0x6d, 0xc7, 0x69, 0x77, 0xc8, 0x8a, 0xd9, 0xb3, 0x56,
+	0x4c, 0xdb, 0x76, 0x7c, 0xd3, 0xb7, 0x1c, 0xdb, 0xe3, 0xbd, 0xf8, 0x73, 0x0d, 0x2a, 0x06, 0xf1,
+	0x7a, 0x8e, 0xed, 0x91, 0x4d, 0x62, 0xb6, 0x88, 0x8b, 0xae, 0x01, 0x34, 0x3b, 0x7d, 0xcf, 0x27,
+	0x6e, 0xc3, 0x6a, 0xd5, 0xb4, 0x45, 0x6d, 0x69, 0xd2, 0x28, 0x08, 0xca, 0x56, 0x0b, 0x5d, 0x81,
+	0x42, 0x97, 0x74, 0x0f, 0x79, 0x6f, 0x86, 0xf5, 0x4e, 0x73, 0xc2, 0x56, 0x0b, 0xe9, 0x30, 0xed,
+	0x92, 0x81, 0xe5, 0x59, 0x8e, 0x5d, 0xcb, 0x2e, 0x6a, 0x4b, 0x59, 0x23, 0x68, 0xd3, 0x81, 0xae,
+	0xf9, 0xc2, 0x6f, 0xf8, 0xc4, 0xed, 0xd6, 0x26, 0xf9, 0x40, 0x4a, 0x38, 0x20, 0x6e, 0x17, 0x7f,
+	0x36, 0x05, 0x25, 0xc3, 0xb4, 0xdb, 0xc4, 0x20, 0x1f, 0xf5, 0x89, 0xe7, 0xa3, 0x2a, 0x64, 0x8f,
+	0xc9, 0x29, 0x83, 0x2f, 0x19, 0xf4, 0x93, 0x8f, 0xb7, 0xdb, 0xa4, 0x41, 0x6c, 0x0e, 0x5c, 0xa2,
+	0xe3, 0xed, 0x36, 0xa9, 0xdb, 0x2d, 0x34, 0x07, 0x53, 0x1d, 0xab, 0x6b, 0xf9, 0x02, 0x95, 0x37,
+	0x22, 0xea, 0x4c, 0xc6, 0xd4, 0x59, 0x07, 0xf0, 0x1c, 0xd7, 0x6f, 0x38, 0x6e, 0x8b, 0xb8, 0xb5,
+	0xa9, 0x45, 0x6d, 0xa9, 0xb2, 0x7a, 0x6b, 0x59, 0x5d, 0x88, 0x65, 0x55, 0xa1, 0xe5, 0x7d, 0xc7,
+	0xf5, 0xf7, 0x28, 0xaf, 0x51, 0xf0, 0xe4, 0x27, 0x7a, 0x07, 0x8a, 0x4c, 0x88, 0x6f, 0xba, 0x6d,
+	0xe2, 0xd7, 0x72, 0x4c, 0xca, 0xed, 0x33, 0xa4, 0x1c, 0x30, 0x66, 0x83, 0xc1, 0xf3, 0x6f, 0x84,
+	0xa1, 0xe4, 0x11, 0xd7, 0x32, 0x3b, 0xd6, 0xc7, 0xe6, 0x61, 0x87, 0xd4, 0xf2, 0x8b, 0xda, 0xd2,
+	0xb4, 0x11, 0xa1, 0xd1, 0xf9, 0x1f, 0x93, 0x53, 0xaf, 0xe1, 0xd8, 0x9d, 0xd3, 0xda, 0x34, 0x63,
+	0x98, 0xa6, 0x84, 0x3d, 0xbb, 0x73, 0xca, 0x16, 0xcd, 0xe9, 0xdb, 0x3e, 0xef, 0x2d, 0xb0, 0xde,
+	0x02, 0xa3, 0xb0, 0xee, 0x25, 0xa8, 0x76, 0x2d, 0xbb, 0xd1, 0x75, 0x5a, 0x8d, 0xc0, 0x20, 0xc0,
+	0x0c, 0x52, 0xe9, 0x5a, 0xf6, 0x13, 0xa7, 0x65, 0x48, 0xb3, 0x50, 0x4e, 0xf3, 0x24, 0xca, 0x59,
+	0x14, 0x9c, 0xe6, 0x89, 0xca, 0xb9, 0x0c, 0xb3, 0x54, 0x66, 0xd3, 0x25, 0xa6, 0x4f, 0x42, 0xe6,
+	0x12, 0x63, 0xbe, 0xd0, 0xb5, 0xec, 0x75, 0xd6, 0x13, 0xe1, 0x37, 0x4f, 0x86, 0xf8, 0xcb, 0x82,
+	0xdf, 0x3c, 0x89, 0xf2, 0xe3, 0x65, 0x28, 0x04, 0x36, 0x47, 0xd3, 0x30, 0xb9, 0xbb, 0xb7, 0x5b,
+	0xaf, 0x4e, 0x20, 0x80, 0xdc, 0xda, 0xfe, 0x7a, 0x7d, 0x77, 0xa3, 0xaa, 0xa1, 0x22, 0xe4, 0x37,
+	0xea, 0xbc, 0x91, 0xc1, 0x8f, 0x00, 0x42, 0xeb, 0xa2, 0x3c, 0x64, 0xb7, 0xeb, 0xff, 0x55, 0x9d,
+	0xa0, 0x3c, 0xcf, 0xeb, 0xc6, 0xfe, 0xd6, 0xde, 0x6e, 0x55, 0xa3, 0x83, 0xd7, 0x8d, 0xfa, 0xda,
+	0x41, 0xbd, 0x9a, 0xa1, 0x1c, 0x4f, 0xf6, 0x36, 0xaa, 0x59, 0x54, 0x80, 0xa9, 0xe7, 0x6b, 0x3b,
+	0xcf, 0xea, 0xd5, 0x49, 0xfc, 0x85, 0x06, 0x65, 0xb1, 0x5e, 0xdc, 0x27, 0xd0, 0x9b, 0x90, 0x3b,
+	0x62, 0x7e, 0xc1, 0xb6, 0x62, 0x71, 0xf5, 0x6a, 0x6c, 0x71, 0x23, 0xbe, 0x63, 0x08, 0x5e, 0x84,
+	0x21, 0x7b, 0x3c, 0xf0, 0x6a, 0x99, 0xc5, 0xec, 0x52, 0x71, 0xb5, 0xba, 0xcc, 0x1d, 0x76, 0x79,
+	0x9b, 0x9c, 0x3e, 0x37, 0x3b, 0x7d, 0x62, 0xd0, 0x4e, 0x84, 0x60, 0xb2, 0xeb, 0xb8, 0x84, 0xed,
+	0xd8, 0x69, 0x83, 0x7d, 0xd3, 0x6d, 0xcc, 0x16, 0x4d, 0xec, 0x56, 0xde, 0xc0, 0x5f, 0x6a, 0x00,
+	0x4f, 0xfb, 0x7e, 0xba, 0x6b, 0xcc, 0xc1, 0xd4, 0x80, 0x0a, 0x16, 0x6e, 0xc1, 0x1b, 0xcc, 0x27,
+	0x88, 0xe9, 0x91, 0xc0, 0x27, 0x68, 0x03, 0x5d, 0x86, 0x7c, 0xcf, 0x25, 0x83, 0xc6, 0xf1, 0x80,
+	0x81, 0x4c, 0x1b, 0x39, 0xda, 0xdc, 0x1e, 0xa0, 0x1b, 0x50, 0xb2, 0xda, 0xb6, 0xe3, 0x92, 0x06,
+	0x97, 0x35, 0xc5, 0x7a, 0x8b, 0x9c, 0xc6, 0xf4, 0x56, 0x58, 0xb8, 0xe0, 0x9c, 0xca, 0xb2, 0x43,
+	0x49, 0xd8, 0x86, 0x22, 0x53, 0x75, 0x2c, 0xf3, 0xdd, 0x0b, 0x75, 0xcc, 0xb0, 0x61, 0xc3, 0x26,
+	0x14, 0x5a, 0xe3, 0x0f, 0x01, 0x6d, 0x90, 0x0e, 0xf1, 0xc9, 0x38, 0xd1, 0x43, 0xb1, 0x49, 0x56,
+	0xb5, 0x09, 0xfe, 0x91, 0x06, 0xb3, 0x11, 0xf1, 0x63, 0x4d, 0xab, 0x06, 0xf9, 0x16, 0x13, 0xc6,
+	0x35, 0xc8, 0x1a, 0xb2, 0x89, 0x1e, 0xc0, 0xb4, 0x50, 0xc0, 0xab, 0x65, 0x53, 0x36, 0x4d, 0x9e,
+	0xeb, 0xe4, 0xe1, 0x2f, 0x33, 0x50, 0x10, 0x13, 0xdd, 0xeb, 0xa1, 0x35, 0x28, 0xbb, 0xbc, 0xd1,
+	0x60, 0xf3, 0x11, 0x1a, 0xe9, 0xe9, 0x41, 0x68, 0x73, 0xc2, 0x28, 0x89, 0x21, 0x8c, 0x8c, 0xfe,
+	0x03, 0x8a, 0x52, 0x44, 0xaf, 0xef, 0x0b, 0x93, 0xd7, 0xa2, 0x02, 0xc2, 0xfd, 0xb7, 0x39, 0x61,
+	0x80, 0x60, 0x7f, 0xda, 0xf7, 0xd1, 0x01, 0xcc, 0xc9, 0xc1, 0x7c, 0x36, 0x42, 0x8d, 0x2c, 0x93,
+	0xb2, 0x18, 0x95, 0x32, 0xbc, 0x54, 0x9b, 0x13, 0x06, 0x12, 0xe3, 0x95, 0x4e, 0x55, 0x25, 0xff,
+	0x84, 0x07, 0xef, 0x21, 0x95, 0x0e, 0x4e, 0xec, 0x61, 0x95, 0x0e, 0x4e, 0xec, 0x47, 0x05, 0xc8,
+	0x8b, 0x16, 0xfe, 0x4d, 0x06, 0x40, 0xae, 0xc6, 0x5e, 0x0f, 0x6d, 0x40, 0xc5, 0x15, 0xad, 0x88,
+	0xb5, 0xae, 0x24, 0x5a, 0x4b, 0x2c, 0xe2, 0x84, 0x51, 0x96, 0x83, 0xb8, 0x72, 0x6f, 0x43, 0x29,
+	0x90, 0x12, 0x1a, 0x6c, 0x3e, 0xc1, 0x60, 0x81, 0x84, 0xa2, 0x1c, 0x40, 0x4d, 0xf6, 0x3e, 0x5c,
+	0x0c, 0xc6, 0x27, 0xd8, 0xec, 0xc6, 0x08, 0x9b, 0x05, 0x02, 0x67, 0xa5, 0x04, 0xd5, 0x6a, 0xaa,
+	0x62, 0xa1, 0xd9, 0xe6, 0x13, 0xcc, 0x36, 0xac, 0x18, 0x35, 0x1c, 0xd0, 0x7c, 0xc9, 0x9b, 0xf8,
+	0x77, 0x59, 0xc8, 0xaf, 0x3b, 0xdd, 0x9e, 0xe9, 0xd2, 0xd5, 0xc8, 0xb9, 0xc4, 0xeb, 0x77, 0x7c,
+	0x66, 0xae, 0xca, 0xea, 0xcd, 0xa8, 0x44, 0xc1, 0x26, 0xff, 0x1a, 0x8c, 0xd5, 0x10, 0x43, 0xe8,
+	0x60, 0x91, 0x1e, 0x33, 0xe7, 0x18, 0x2c, 0x92, 0xa3, 0x18, 0x22, 0x1d, 0x39, 0x1b, 0x3a, 0xb2,
+	0x0e, 0xf9, 0x01, 0x71, 0xc3, 0x94, 0xbe, 0x39, 0x61, 0x48, 0x02, 0xba, 0x07, 0x33, 0xf1, 0xf4,
+	0x32, 0x25, 0x78, 0x2a, 0xcd, 0x68, 0x36, 0xba, 0x09, 0xa5, 0x48, 0x8e, 0xcb, 0x09, 0xbe, 0x62,
+	0x57, 0x49, 0x71, 0x97, 0x64, 0x5c, 0xa5, 0xf9, 0xb8, 0xb4, 0x39, 0x21, 0x23, 0x6b, 0x24, 0x98,
+	0x4c, 0x47, 0x83, 0x09, 0xfe, 0x4f, 0x28, 0x47, 0x0c, 0x41, 0xf3, 0x4b, 0xfd, 0xbd, 0x67, 0x6b,
+	0x3b, 0x3c, 0x19, 0x3d, 0x66, 0xf9, 0xc7, 0xa8, 0x6a, 0x34, 0xa7, 0xed, 0xd4, 0xf7, 0xf7, 0xab,
+	0x19, 0x54, 0x86, 0xc2, 0xee, 0xde, 0x41, 0x83, 0x73, 0x65, 0xf1, 0x5b, 0x81, 0x04, 0x91, 0xcc,
+	0x94, 0x1c, 0x36, 0xa1, 0xe4, 0x30, 0x4d, 0xe6, 0xb0, 0x4c, 0x98, 0xc3, 0xb2, 0x8f, 0x2a, 0x50,
+	0xe2, 0xc6, 0x6b, 0xf4, 0x6d, 0x9a, 0x47, 0x7f, 0xa1, 0x01, 0x84, 0xae, 0x82, 0x56, 0x20, 0xdf,
+	0xe4, 0xc2, 0x6b, 0x1a, 0x8b, 0x34, 0x17, 0x13, 0xd7, 0xc3, 0x90, 0x5c, 0xe8, 0x75, 0xc8, 0x7b,
+	0xfd, 0x66, 0x93, 0x78, 0x32, 0x9f, 0x5d, 0x8e, 0x07, 0x3b, 0x11, 0x8a, 0x0c, 0xc9, 0x47, 0x87,
+	0xbc, 0x30, 0xad, 0x4e, 0x9f, 0x65, 0xb7, 0xd1, 0x43, 0x04, 0x1f, 0xfe, 0xa9, 0x06, 0x45, 0x65,
+	0x67, 0x7e, 0xc3, 0x08, 0x7b, 0x15, 0x0a, 0x4c, 0x07, 0xd2, 0x12, 0x31, 0x76, 0xda, 0x08, 0x09,
+	0xe8, 0xdf, 0xa1, 0x20, 0xb7, 0xb7, 0x0c, 0xb3, 0xb5, 0x64, 0xb1, 0x7b, 0x3d, 0x23, 0x64, 0xc5,
+	0xdb, 0x70, 0x81, 0x59, 0xa5, 0x49, 0x4f, 0xce, 0xd2, 0x8e, 0xea, 0xd9, 0x52, 0x8b, 0x9d, 0x2d,
+	0x75, 0x98, 0xee, 0x1d, 0x9d, 0x7a, 0x56, 0xd3, 0xec, 0x08, 0x2d, 0x82, 0x36, 0x7e, 0x17, 0x90,
+	0x2a, 0x6c, 0x9c, 0xe9, 0xe2, 0x32, 0x14, 0x37, 0x4d, 0xef, 0x48, 0xa8, 0x84, 0x3f, 0x80, 0x12,
+	0x6f, 0x8e, 0x65, 0x43, 0x04, 0x93, 0x47, 0xa6, 0x77, 0xc4, 0x14, 0x2f, 0x1b, 0xec, 0x1b, 0x5f,
+	0x80, 0x99, 0x7d, 0xdb, 0xec, 0x79, 0x47, 0x8e, 0xcc, 0x02, 0xf4, 0xe6, 0x50, 0x0d, 0x69, 0x63,
+	0x21, 0xde, 0x85, 0x19, 0x97, 0x74, 0x4d, 0xcb, 0xb6, 0xec, 0x76, 0xe3, 0xf0, 0xd4, 0x27, 0x9e,
+	0xb8, 0x58, 0x54, 0x02, 0xf2, 0x23, 0x4a, 0xa5, 0xaa, 0x1d, 0x76, 0x9c, 0x43, 0x11, 0x0e, 0xd8,
+	0x37, 0xfe, 0xb5, 0x06, 0xa5, 0xf7, 0x4d, 0xbf, 0x29, 0xad, 0x80, 0xb6, 0xa0, 0x12, 0x04, 0x01,
+	0x46, 0x11, 0xba, 0xc4, 0x52, 0x11, 0x1b, 0x23, 0x8f, 0x9c, 0x32, 0x8b, 0x94, 0x9b, 0x2a, 0x81,
+	0x89, 0x32, 0xed, 0x26, 0xe9, 0x04, 0xa2, 0x32, 0xe9, 0xa2, 0x18, 0xa3, 0x2a, 0x4a, 0x25, 0x3c,
+	0x9a, 0x09, 0xd3, 0x34, 0x77, 0xcb, 0x9f, 0x65, 0x00, 0x0d, 0xeb, 0xf0, 0x75, 0x4f, 0x2e, 0xb7,
+	0xa1, 0xe2, 0xf9, 0xa6, 0xeb, 0x37, 0x62, 0xd7, 0xae, 0x32, 0xa3, 0x06, 0x81, 0xec, 0x2e, 0xcc,
+	0xf4, 0x5c, 0xa7, 0xed, 0x12, 0xcf, 0x6b, 0xd8, 0x8e, 0x6f, 0xbd, 0x38, 0x15, 0x87, 0xbf, 0x8a,
+	0x24, 0xef, 0x32, 0x2a, 0xaa, 0x43, 0xfe, 0x85, 0xd5, 0xf1, 0x89, 0xeb, 0xd5, 0xa6, 0x16, 0xb3,
+	0x4b, 0x95, 0xd5, 0x07, 0x67, 0x59, 0x6d, 0xf9, 0x1d, 0xc6, 0x7f, 0x70, 0xda, 0x23, 0x86, 0x1c,
+	0xab, 0x1e, 0xa8, 0x72, 0x91, 0x03, 0xd5, 0x6d, 0x80, 0x90, 0x9f, 0x46, 0xad, 0xdd, 0xbd, 0xa7,
+	0xcf, 0x0e, 0xaa, 0x13, 0xa8, 0x04, 0xd3, 0xbb, 0x7b, 0x1b, 0xf5, 0x9d, 0x3a, 0x8d, 0x6b, 0x78,
+	0x45, 0xda, 0x46, 0xb5, 0x21, 0x9a, 0x87, 0xe9, 0x97, 0x94, 0x2a, 0xef, 0xa5, 0x59, 0x23, 0xcf,
+	0xda, 0x5b, 0x2d, 0xfc, 0xc3, 0x0c, 0x94, 0xc5, 0x2e, 0x18, 0x6b, 0x2b, 0xaa, 0x10, 0x99, 0x08,
+	0x04, 0x3d, 0xbd, 0xf1, 0xdd, 0xd1, 0x12, 0x87, 0x44, 0xd9, 0xa4, 0xee, 0xce, 0x17, 0x9b, 0xb4,
+	0x84, 0x59, 0x83, 0x36, 0xba, 0x07, 0xd5, 0x26, 0x77, 0xf7, 0x58, 0x4e, 0x32, 0x66, 0x04, 0x5d,
+	0x49, 0x49, 0xe5, 0x60, 0xb7, 0x99, 0x9e, 0xc8, 0x49, 0x05, 0xa3, 0x24, 0x37, 0x12, 0xa5, 0xa1,
+	0xdb, 0x90, 0x23, 0x03, 0x62, 0xfb, 0x5e, 0xad, 0xc8, 0x02, 0x58, 0x59, 0x9e, 0x13, 0xeb, 0x94,
+	0x6a, 0x88, 0x4e, 0xfc, 0x6f, 0x70, 0x81, 0x9d, 0xc7, 0x1f, 0xbb, 0xa6, 0xad, 0x5e, 0x1c, 0x0e,
+	0x0e, 0x76, 0x84, 0xe9, 0xe8, 0x27, 0xaa, 0x40, 0x66, 0x6b, 0x43, 0x4c, 0x34, 0xb3, 0xb5, 0x81,
+	0x3f, 0xd5, 0x00, 0xa9, 0xe3, 0xc6, 0xb2, 0x65, 0x4c, 0xb8, 0x84, 0xcf, 0x86, 0xf0, 0x73, 0x30,
+	0x45, 0x5c, 0xd7, 0x71, 0x99, 0xd5, 0x0a, 0x06, 0x6f, 0xe0, 0x5b, 0x42, 0x07, 0x83, 0x0c, 0x9c,
+	0xe3, 0xc0, 0x31, 0xb8, 0x34, 0x2d, 0x50, 0x75, 0x1b, 0x66, 0x23, 0x5c, 0x63, 0x05, 0xd2, 0xbb,
+	0x70, 0x91, 0x09, 0xdb, 0x26, 0xa4, 0xb7, 0xd6, 0xb1, 0x06, 0xa9, 0xa8, 0x3d, 0xb8, 0x14, 0x67,
+	0xfc, 0x76, 0x6d, 0x84, 0xdf, 0x12, 0x88, 0x07, 0x56, 0x97, 0x1c, 0x38, 0x3b, 0xe9, 0xba, 0xd1,
+	0xe8, 0x78, 0x4c, 0x4e, 0x3d, 0x91, 0x71, 0xd8, 0x37, 0xfe, 0xa5, 0x06, 0x97, 0x87, 0x86, 0x7f,
+	0xcb, 0xab, 0xba, 0x00, 0xd0, 0xa6, 0xdb, 0x87, 0xb4, 0x68, 0x07, 0xbf, 0xc9, 0x2a, 0x94, 0x40,
+	0x4f, 0x1a, 0x60, 0x4a, 0x42, 0xcf, 0x23, 0xc8, 0x3d, 0x61, 0x45, 0x24, 0x65, 0x56, 0x93, 0x72,
+	0x56, 0xb6, 0xd9, 0xe5, 0x57, 0xdb, 0x82, 0xc1, 0xbe, 0x59, 0x7e, 0x25, 0xc4, 0x7d, 0x66, 0xec,
+	0xf0, 0x3c, 0x5e, 0x30, 0x82, 0x36, 0x45, 0x6f, 0x76, 0x2c, 0x62, 0xfb, 0xac, 0x77, 0x92, 0xf5,
+	0x2a, 0x14, 0xbc, 0x0c, 0x55, 0x8e, 0xb4, 0xd6, 0x6a, 0x29, 0xb9, 0x3c, 0x90, 0xa7, 0x45, 0xe5,
+	0xe1, 0x5f, 0x69, 0x70, 0x41, 0x19, 0x30, 0x96, 0xed, 0x5e, 0x81, 0x1c, 0x2f, 0x95, 0x89, 0x3c,
+	0x32, 0x17, 0x1d, 0xc5, 0x61, 0x0c, 0xc1, 0x83, 0x96, 0x21, 0xcf, 0xbf, 0xe4, 0x61, 0x25, 0x99,
+	0x5d, 0x32, 0xe1, 0xdb, 0x30, 0x2b, 0x48, 0xa4, 0xeb, 0x24, 0x6d, 0x13, 0x66, 0x50, 0xfc, 0x09,
+	0xcc, 0x45, 0xd9, 0xc6, 0x9a, 0x92, 0xa2, 0x64, 0xe6, 0x3c, 0x4a, 0xae, 0x49, 0x25, 0x9f, 0xf5,
+	0x5a, 0x4a, 0xda, 0x8b, 0xaf, 0xba, 0xba, 0x22, 0x99, 0xd8, 0x8a, 0x04, 0x13, 0x90, 0x22, 0xbe,
+	0xd3, 0x09, 0xcc, 0xca, 0xed, 0xb0, 0x63, 0x79, 0xc1, 0x61, 0xe8, 0x63, 0x40, 0x2a, 0xf1, 0xbb,
+	0x56, 0x68, 0x83, 0xbc, 0x70, 0xcd, 0x76, 0x97, 0x04, 0xa1, 0x9e, 0x9e, 0x32, 0x55, 0xe2, 0x58,
+	0xc1, 0xf1, 0x8f, 0x1a, 0x94, 0xd6, 0x3a, 0xa6, 0xdb, 0x95, 0x8b, 0xf5, 0x36, 0xe4, 0xf8, 0xf1,
+	0x55, 0x5c, 0x07, 0xef, 0x44, 0xc5, 0xa8, 0xbc, 0xbc, 0xb1, 0xc6, 0x0f, 0xbb, 0x62, 0x14, 0x5d,
+	0x5c, 0x51, 0x31, 0xde, 0x88, 0x55, 0x90, 0x37, 0xd0, 0xab, 0x30, 0x65, 0xd2, 0x21, 0x2c, 0xa0,
+	0x54, 0xe2, 0x17, 0x07, 0x26, 0x8d, 0x1d, 0x35, 0x38, 0x17, 0x7e, 0x13, 0x8a, 0x0a, 0x02, 0xbd,
+	0x0f, 0x3d, 0xae, 0x8b, 0xe3, 0xc4, 0xda, 0xfa, 0xc1, 0xd6, 0x73, 0x7e, 0x4d, 0xaa, 0x00, 0x6c,
+	0xd4, 0x83, 0x76, 0x06, 0x7f, 0x20, 0x46, 0x89, 0x90, 0xa3, 0xea, 0xa3, 0xa5, 0xe9, 0x93, 0x39,
+	0x97, 0x3e, 0x27, 0x50, 0x16, 0xd3, 0x1f, 0x6b, 0x0f, 0xbc, 0x0e, 0x39, 0x26, 0x4f, 0x6e, 0x81,
+	0xf9, 0x04, 0x58, 0x19, 0x2d, 0x38, 0x23, 0x9e, 0x81, 0xf2, 0xbe, 0x6f, 0xfa, 0x7d, 0x4f, 0x6e,
+	0x81, 0x3f, 0x68, 0x50, 0x91, 0x94, 0x71, 0xcb, 0x56, 0xf2, 0xc6, 0xcd, 0x83, 0x70, 0x70, 0xdf,
+	0xbe, 0x04, 0xb9, 0xd6, 0xe1, 0xbe, 0xf5, 0xb1, 0x2c, 0x31, 0x8a, 0x16, 0xa5, 0x77, 0x38, 0x0e,
+	0xaf, 0xf3, 0x8b, 0x16, 0xbd, 0x9e, 0xb9, 0xe6, 0x0b, 0x7f, 0xcb, 0x6e, 0x91, 0x13, 0x76, 0x0a,
+	0x9a, 0x34, 0x42, 0x02, 0xbb, 0x51, 0x89, 0xf7, 0x00, 0x76, 0xf4, 0x51, 0xdf, 0x07, 0x66, 0xe1,
+	0xc2, 0x5a, 0xdf, 0x3f, 0xaa, 0xdb, 0xe6, 0x61, 0x47, 0x06, 0x0d, 0x3c, 0x07, 0x88, 0x12, 0x37,
+	0x2c, 0x4f, 0xa5, 0xd6, 0x61, 0x96, 0x52, 0x89, 0xed, 0x5b, 0x4d, 0x25, 0xc2, 0xc8, 0x3c, 0xa2,
+	0xc5, 0xf2, 0x88, 0xe9, 0x79, 0x2f, 0x1d, 0xb7, 0x25, 0xa6, 0x16, 0xb4, 0xf1, 0x06, 0x17, 0xfe,
+	0xcc, 0x8b, 0x64, 0x8a, 0xaf, 0x2b, 0x65, 0x29, 0x94, 0xf2, 0x98, 0xf8, 0x23, 0xa4, 0xe0, 0x07,
+	0x70, 0x51, 0x72, 0x8a, 0x92, 0xce, 0x08, 0xe6, 0x3d, 0xb8, 0x26, 0x99, 0xd7, 0x8f, 0xe8, 0x5d,
+	0xe0, 0xa9, 0x00, 0xfc, 0xa6, 0x7a, 0x3e, 0x82, 0x5a, 0xa0, 0x27, 0x3b, 0xfa, 0x39, 0x1d, 0x55,
+	0x81, 0xbe, 0x27, 0xf6, 0x4c, 0xc1, 0x60, 0xdf, 0x94, 0xe6, 0x3a, 0x9d, 0x20, 0x2b, 0xd3, 0x6f,
+	0xbc, 0x0e, 0xf3, 0x52, 0x86, 0x38, 0x94, 0x45, 0x85, 0x0c, 0x29, 0x94, 0x24, 0x44, 0x18, 0x8c,
+	0x0e, 0x1d, 0x6d, 0x76, 0x95, 0x33, 0x6a, 0x5a, 0x26, 0x53, 0x53, 0x64, 0x5e, 0xe4, 0x3b, 0x82,
+	0x2a, 0xa6, 0x06, 0x6d, 0x41, 0xa6, 0x02, 0x54, 0xb2, 0x58, 0x08, 0x4a, 0x1e, 0x5a, 0x88, 0x21,
+	0xd1, 0x1f, 0xc2, 0x42, 0xa0, 0x04, 0xb5, 0xdb, 0x53, 0xe2, 0x76, 0x2d, 0xcf, 0x53, 0xea, 0x04,
+	0x49, 0x13, 0xbf, 0x03, 0x93, 0x3d, 0x22, 0x62, 0x4a, 0x71, 0x15, 0x2d, 0xf3, 0x57, 0xbb, 0x65,
+	0x65, 0x30, 0xeb, 0xc7, 0x2d, 0xb8, 0x2e, 0xa5, 0x73, 0x8b, 0x26, 0x8a, 0x8f, 0x2b, 0x25, 0xef,
+	0x90, 0xdc, 0xac, 0xc3, 0x77, 0xc8, 0x2c, 0x5f, 0xfb, 0xa0, 0x60, 0xf5, 0x2e, 0x37, 0xa4, 0xf4,
+	0xad, 0xb1, 0x72, 0xc5, 0x36, 0xb7, 0x69, 0xe0, 0x92, 0x63, 0x09, 0x3b, 0x84, 0xb9, 0xa8, 0x27,
+	0x8f, 0x15, 0xc6, 0xe6, 0x60, 0xca, 0x77, 0x8e, 0x89, 0x0c, 0x62, 0xbc, 0x21, 0x15, 0x0e, 0xdc,
+	0x7c, 0x2c, 0x85, 0xcd, 0x50, 0x18, 0xdb, 0x92, 0xe3, 0xea, 0x4b, 0x57, 0x53, 0x9e, 0x7f, 0x78,
+	0x03, 0xef, 0xc2, 0xa5, 0x78, 0x98, 0x18, 0x4b, 0xe5, 0xe7, 0x7c, 0x03, 0x27, 0x45, 0x92, 0xb1,
+	0xe4, 0xbe, 0x17, 0x06, 0x03, 0x25, 0xa0, 0x8c, 0x25, 0xd2, 0x00, 0x3d, 0x29, 0xbe, 0xfc, 0x2b,
+	0xf6, 0x6b, 0x10, 0x6e, 0xc6, 0x12, 0xe6, 0x85, 0xc2, 0xc6, 0x5f, 0xfe, 0x30, 0x46, 0x64, 0x47,
+	0xc6, 0x08, 0xe1, 0x24, 0x61, 0x14, 0xfb, 0x16, 0x36, 0x9d, 0xc0, 0x08, 0x03, 0xe8, 0xb8, 0x18,
+	0x34, 0x87, 0x04, 0x18, 0xac, 0x21, 0x37, 0xb6, 0x1a, 0x76, 0xc7, 0x5a, 0x8c, 0xf7, 0xc3, 0xd8,
+	0x39, 0x14, 0x99, 0xc7, 0x12, 0xfc, 0x01, 0x2c, 0xa6, 0x07, 0xe5, 0x71, 0x24, 0xdf, 0xc7, 0x50,
+	0x08, 0x0e, 0x94, 0xca, 0x8b, 0x77, 0x11, 0xf2, 0xbb, 0x7b, 0xfb, 0x4f, 0xd7, 0xd6, 0xeb, 0x55,
+	0x6d, 0xf5, 0xef, 0x59, 0xc8, 0x6c, 0x3f, 0x47, 0xff, 0x0d, 0x53, 0xfc, 0xc9, 0x67, 0xc4, 0x3b,
+	0x9f, 0x3e, 0xea, 0x55, 0x0b, 0x5f, 0xfd, 0xf4, 0xcf, 0x7f, 0xfb, 0x22, 0x73, 0x09, 0x5f, 0x58,
+	0x19, 0xbc, 0x61, 0x76, 0x7a, 0x47, 0xe6, 0xca, 0xf1, 0x60, 0x85, 0xe5, 0x84, 0x87, 0xda, 0x7d,
+	0xf4, 0x1c, 0xb2, 0x4f, 0xfb, 0x3e, 0x4a, 0x7d, 0x04, 0xd4, 0xd3, 0x5f, 0xbb, 0xb0, 0xce, 0x24,
+	0xcf, 0xe1, 0x19, 0x55, 0x72, 0xaf, 0xef, 0x53, 0xb9, 0x03, 0x28, 0xaa, 0x0f, 0x56, 0x67, 0x3e,
+	0x0f, 0xea, 0x67, 0x3f, 0x86, 0x61, 0xcc, 0xf0, 0xae, 0xe2, 0xcb, 0x2a, 0x1e, 0x7f, 0x57, 0x53,
+	0xe7, 0x73, 0x70, 0x62, 0xa3, 0xd4, 0x17, 0x44, 0x3d, 0xfd, 0x91, 0x2c, 0x79, 0x3e, 0xfe, 0x89,
+	0x4d, 0xe5, 0x3a, 0xe2, 0x91, 0xac, 0xe9, 0xa3, 0xeb, 0x09, 0xef, 0x28, 0xea, 0x8b, 0x81, 0xbe,
+	0x98, 0xce, 0x20, 0x90, 0x6e, 0x30, 0xa4, 0x2b, 0xf8, 0x92, 0x8a, 0xd4, 0x0c, 0xf8, 0x1e, 0x6a,
+	0xf7, 0x57, 0x8f, 0x60, 0x8a, 0xd5, 0x39, 0x51, 0x43, 0x7e, 0xe8, 0x09, 0x15, 0xda, 0x94, 0x1d,
+	0x10, 0xa9, 0x90, 0xe2, 0x79, 0x86, 0x36, 0x8b, 0x2b, 0x01, 0x1a, 0x2b, 0x75, 0x3e, 0xd4, 0xee,
+	0x2f, 0x69, 0xaf, 0x69, 0xab, 0xff, 0x3f, 0x09, 0x53, 0xac, 0x74, 0x84, 0x7a, 0x00, 0x61, 0x51,
+	0x30, 0x3e, 0xcf, 0xa1, 0x32, 0x63, 0x7c, 0x9e, 0xc3, 0xf5, 0x44, 0x7c, 0x9d, 0x21, 0xcf, 0xe3,
+	0xb9, 0x00, 0x99, 0xfd, 0x9e, 0x60, 0x85, 0x15, 0x89, 0xa8, 0x59, 0x5f, 0x42, 0x51, 0x29, 0xee,
+	0xa1, 0x24, 0x89, 0x91, 0xea, 0x60, 0x7c, 0x9b, 0x24, 0x54, 0x06, 0xf1, 0x4d, 0x06, 0x7a, 0x0d,
+	0xd7, 0x54, 0xe3, 0x72, 0x5c, 0x97, 0x71, 0x52, 0xe0, 0xcf, 0x34, 0xa8, 0x44, 0x0b, 0x7c, 0xe8,
+	0x66, 0x82, 0xe8, 0x78, 0x9d, 0x50, 0xbf, 0x35, 0x9a, 0x29, 0x55, 0x05, 0x8e, 0x7f, 0x4c, 0x48,
+	0xcf, 0xa4, 0x9c, 0xc2, 0xf6, 0xe8, 0x7b, 0x1a, 0xcc, 0xc4, 0xca, 0x76, 0x28, 0x09, 0x62, 0xa8,
+	0x28, 0xa8, 0xdf, 0x3e, 0x83, 0x4b, 0x68, 0x72, 0x97, 0x69, 0x72, 0x03, 0x5f, 0x1d, 0x36, 0x86,
+	0x6f, 0x75, 0x89, 0xef, 0x08, 0x6d, 0x56, 0xff, 0x91, 0x85, 0xfc, 0x3a, 0xff, 0xf1, 0x17, 0xf2,
+	0xa1, 0x10, 0x54, 0xc2, 0xd0, 0x42, 0x52, 0x55, 0x22, 0x3c, 0xb2, 0xeb, 0xd7, 0x53, 0xfb, 0x85,
+	0x0a, 0x77, 0x98, 0x0a, 0x8b, 0xf8, 0x4a, 0xa0, 0x82, 0xf8, 0x91, 0xd9, 0x0a, 0xbf, 0x7c, 0xaf,
+	0x98, 0xad, 0x16, 0x5d, 0x92, 0xff, 0xd3, 0xa0, 0xa4, 0x16, 0xac, 0xd0, 0x8d, 0xc4, 0x7a, 0x88,
+	0x5a, 0xf3, 0xd2, 0xf1, 0x28, 0x16, 0x81, 0x7f, 0x8f, 0xe1, 0xdf, 0xc4, 0x0b, 0x69, 0xf8, 0x2e,
+	0xe3, 0x8f, 0xaa, 0xc0, 0x4b, 0x4e, 0xc9, 0x2a, 0x44, 0x2a, 0x5a, 0xc9, 0x2a, 0x44, 0x2b, 0x56,
+	0x67, 0xab, 0xd0, 0x67, 0xfc, 0x54, 0x85, 0x13, 0x80, 0xb0, 0xc2, 0x84, 0x12, 0x8d, 0xab, 0x5c,
+	0x62, 0xe2, 0x3e, 0x38, 0x5c, 0x9c, 0x4a, 0xd8, 0x01, 0x31, 0xec, 0x8e, 0xe5, 0x51, 0x5f, 0x5c,
+	0xfd, 0xed, 0x24, 0x14, 0x9f, 0x98, 0x96, 0xed, 0x13, 0xdb, 0xb4, 0x9b, 0x04, 0xb5, 0x61, 0x8a,
+	0x65, 0xa9, 0x78, 0xe0, 0x51, 0xcb, 0x3e, 0xf1, 0xc0, 0x13, 0xa9, 0x89, 0xe0, 0xdb, 0x0c, 0xfa,
+	0x3a, 0xd6, 0x03, 0xe8, 0x6e, 0x28, 0x7f, 0x85, 0xd5, 0x33, 0xe8, 0x94, 0x8f, 0x21, 0xc7, 0xeb,
+	0x17, 0x28, 0x26, 0x2d, 0x52, 0xe7, 0xd0, 0xaf, 0x26, 0x77, 0xa6, 0xee, 0x32, 0x15, 0xcb, 0x63,
+	0xcc, 0x14, 0xec, 0x7f, 0x00, 0xc2, 0x82, 0x59, 0xdc, 0xbe, 0x43, 0xf5, 0x35, 0x7d, 0x31, 0x9d,
+	0x41, 0x00, 0xdf, 0x67, 0xc0, 0xb7, 0xf0, 0xf5, 0x44, 0xe0, 0x56, 0x30, 0x80, 0x82, 0x37, 0x61,
+	0x72, 0xd3, 0xf4, 0x8e, 0x50, 0x2c, 0x09, 0x29, 0x6f, 0xbb, 0xba, 0x9e, 0xd4, 0x25, 0xa0, 0x6e,
+	0x31, 0xa8, 0x05, 0x3c, 0x9f, 0x08, 0x75, 0x64, 0x7a, 0x34, 0xa6, 0xa3, 0x3e, 0x4c, 0xcb, 0xf7,
+	0x5a, 0x74, 0x2d, 0x66, 0xb3, 0xe8, 0xdb, 0xae, 0xbe, 0x90, 0xd6, 0x2d, 0x00, 0x97, 0x18, 0x20,
+	0xc6, 0xd7, 0x92, 0x8d, 0x2a, 0xd8, 0x1f, 0x6a, 0xf7, 0x5f, 0xd3, 0x56, 0x7f, 0x50, 0x85, 0x49,
+	0x7a, 0x5e, 0xa2, 0x59, 0x24, 0xbc, 0x66, 0xc6, 0x2d, 0x3c, 0x54, 0xdc, 0x89, 0x5b, 0x78, 0xf8,
+	0x86, 0x9a, 0x90, 0x45, 0xd8, 0x4f, 0x60, 0x09, 0xe3, 0xa2, 0x33, 0xf6, 0xa1, 0xa8, 0x5c, 0x46,
+	0x51, 0x82, 0xc4, 0x68, 0xe9, 0x28, 0x9e, 0x45, 0x12, 0x6e, 0xb2, 0x78, 0x91, 0x81, 0xea, 0xf8,
+	0x62, 0x14, 0xb4, 0xc5, 0xd9, 0x28, 0xea, 0x27, 0x50, 0x52, 0x6f, 0xad, 0x28, 0x41, 0x68, 0xac,
+	0x36, 0x15, 0x8f, 0x15, 0x49, 0x97, 0xde, 0x04, 0xa7, 0x09, 0x7e, 0xf0, 0x2b, 0x79, 0x29, 0xfa,
+	0x47, 0x90, 0x17, 0x77, 0xd9, 0xa4, 0xf9, 0x46, 0xab, 0x59, 0x49, 0xf3, 0x8d, 0x5d, 0x84, 0x13,
+	0x8e, 0x24, 0x0c, 0x96, 0x9e, 0xd9, 0x65, 0x80, 0x16, 0x90, 0x8f, 0x89, 0x9f, 0x06, 0x19, 0xd6,
+	0x67, 0xd2, 0x20, 0x95, 0xfb, 0xd2, 0x48, 0xc8, 0x36, 0xf1, 0xc5, 0x5e, 0x96, 0x97, 0x11, 0x94,
+	0x22, 0x51, 0x8d, 0x86, 0x78, 0x14, 0x4b, 0xea, 0x29, 0x32, 0x44, 0x15, 0xa1, 0x10, 0xfd, 0x2f,
+	0x40, 0x78, 0xf1, 0x8e, 0x1f, 0x0c, 0x12, 0xab, 0x77, 0xf1, 0x83, 0x41, 0xf2, 0xdd, 0x3d, 0xc1,
+	0x83, 0x43, 0x70, 0x7e, 0x92, 0xa5, 0xf0, 0x3f, 0xd6, 0x00, 0x0d, 0x5f, 0xd4, 0xd1, 0x83, 0x64,
+	0x88, 0xc4, 0xc2, 0xa0, 0xfe, 0xca, 0xf9, 0x98, 0x53, 0xa3, 0x67, 0xa8, 0x57, 0x93, 0x0d, 0xe9,
+	0xbd, 0xa4, 0x9a, 0x7d, 0xae, 0x41, 0x39, 0x72, 0xd5, 0x47, 0x77, 0x52, 0xd6, 0x39, 0x56, 0x5c,
+	0xd4, 0xef, 0x9e, 0xc9, 0x97, 0x7a, 0x76, 0x52, 0x76, 0x85, 0x3c, 0x37, 0x7e, 0x5f, 0x83, 0x4a,
+	0xb4, 0x3e, 0x80, 0x52, 0x00, 0x86, 0x2a, 0x94, 0xfa, 0xd2, 0xd9, 0x8c, 0xe7, 0x58, 0xad, 0xf0,
+	0x28, 0xf9, 0x11, 0xe4, 0x45, 0x59, 0x21, 0xc9, 0x2d, 0xa2, 0x05, 0xce, 0x24, 0xb7, 0x88, 0xd5,
+	0x24, 0xd2, 0xdc, 0x82, 0xde, 0xd0, 0x15, 0x4f, 0x14, 0xc5, 0x87, 0x34, 0xc8, 0xd1, 0x9e, 0x18,
+	0xab, 0x5c, 0x8c, 0x84, 0x0c, 0x3d, 0x51, 0x96, 0x1e, 0x50, 0x8a, 0xc4, 0x33, 0x3c, 0x31, 0x5e,
+	0xb9, 0x48, 0xf3, 0x44, 0x86, 0xaa, 0x78, 0x62, 0x58, 0x29, 0x48, 0xf2, 0xc4, 0xa1, 0xf2, 0x6d,
+	0x92, 0x27, 0x0e, 0x17, 0x1b, 0xd2, 0xd6, 0x96, 0x81, 0x47, 0x3c, 0x71, 0x36, 0xa1, 0xb2, 0x80,
+	0x5e, 0x49, 0xb1, 0x69, 0x62, 0x69, 0x58, 0x7f, 0xf5, 0x9c, 0xdc, 0xa3, 0x3d, 0x80, 0xaf, 0x86,
+	0xf4, 0x80, 0x9f, 0x6b, 0x30, 0x97, 0x54, 0x9a, 0x40, 0x29, 0x60, 0x29, 0x75, 0x65, 0x7d, 0xf9,
+	0xbc, 0xec, 0xe7, 0xb0, 0x5b, 0xe0, 0x13, 0x8f, 0xaa, 0xbf, 0xff, 0x6a, 0x41, 0xfb, 0xd3, 0x57,
+	0x0b, 0xda, 0x5f, 0xbe, 0x5a, 0xd0, 0x7e, 0xf2, 0xd7, 0x85, 0x89, 0xc3, 0x1c, 0xfb, 0x7f, 0x28,
+	0x6f, 0xfc, 0x33, 0x00, 0x00, 0xff, 0xff, 0xd1, 0x0e, 0xf0, 0x0b, 0x0e, 0x33, 0x00, 0x00,
 }

etcdserver/etcdserverpb/rpc.proto

@@ -469,6 +469,7 @@ message RequestOp {
     RangeRequest request_range = 1;
     PutRequest request_put = 2;
     DeleteRangeRequest request_delete_range = 3;
+    TxnRequest request_txn = 4;
   }
 }
 
@@ -478,6 +479,7 @@ message ResponseOp {
     RangeResponse response_range = 1;
     PutResponse response_put = 2;
     DeleteRangeResponse response_delete_range = 3;
+    TxnResponse response_txn = 4;
   }
 }
 

etcdserver/server.go

@@ -474,7 +474,7 @@ func NewServer(cfg ServerConfig) (srv *EtcdServer, err error) {
 		srv.compactor.Run()
 	}
 
-	srv.applyV3Base = &applierV3backend{srv}
+	srv.applyV3Base = srv.newApplierV3Backend()
 	if err = srv.restoreAlarms(); err != nil {
 		return nil, err
 	}

integration/v3_grpc_test.go

@@ -192,11 +192,22 @@ func TestV3TxnTooManyOps(t *testing.T) {
 				},
 			})
 	}
+	addTxnOps := func(txn *pb.TxnRequest) {
+		newTxn := &pb.TxnRequest{}
+		addSuccessOps(newTxn)
+		txn.Success = append(txn.Success,
+			&pb.RequestOp{Request: &pb.RequestOp_RequestTxn{
+				RequestTxn: newTxn,
+			},
+			},
+		)
+	}
 
 	tests := []func(txn *pb.TxnRequest){
 		addCompareOps,
 		addSuccessOps,
 		addFailureOps,
+		addTxnOps,
 	}
 
 	for i, tt := range tests {
@@ -236,6 +247,27 @@ func TestV3TxnDuplicateKeys(t *testing.T) {
 		},
 	},
 	}
+	txnDelReq := &pb.RequestOp{Request: &pb.RequestOp_RequestTxn{
+		RequestTxn: &pb.TxnRequest{Success: []*pb.RequestOp{delInRangeReq}},
+	},
+	}
+	txnDelReqTwoSide := &pb.RequestOp{Request: &pb.RequestOp_RequestTxn{
+		RequestTxn: &pb.TxnRequest{
+			Success: []*pb.RequestOp{delInRangeReq},
+			Failure: []*pb.RequestOp{delInRangeReq}},
+	},
+	}
+
+	txnPutReq := &pb.RequestOp{Request: &pb.RequestOp_RequestTxn{
+		RequestTxn: &pb.TxnRequest{Success: []*pb.RequestOp{putreq}},
+	},
+	}
+	txnPutReqTwoSide := &pb.RequestOp{Request: &pb.RequestOp_RequestTxn{
+		RequestTxn: &pb.TxnRequest{
+			Success: []*pb.RequestOp{putreq},
+			Failure: []*pb.RequestOp{putreq}},
+	},
+	}
 
 	kvc := toGRPC(clus.RandClient()).KV
 	tests := []struct {
@@ -258,6 +290,36 @@ func TestV3TxnDuplicateKeys(t *testing.T) {
 
 			werr: rpctypes.ErrGRPCDuplicateKey,
 		},
+		// Then(Put(a), Then(Del(a)))
+		{
+			txnSuccess: []*pb.RequestOp{putreq, txnDelReq},
+
+			werr: rpctypes.ErrGRPCDuplicateKey,
+		},
+		// Then(Del(a), Then(Put(a)))
+		{
+			txnSuccess: []*pb.RequestOp{delInRangeReq, txnPutReq},
+
+			werr: rpctypes.ErrGRPCDuplicateKey,
+		},
+		// Then((Then(Put(a)), Else(Put(a))), (Then(Put(a)), Else(Put(a)))
+		{
+			txnSuccess: []*pb.RequestOp{txnPutReqTwoSide, txnPutReqTwoSide},
+
+			werr: rpctypes.ErrGRPCDuplicateKey,
+		},
+		// Then(Del(x), (Then(Put(a)), Else(Put(a))))
+		{
+			txnSuccess: []*pb.RequestOp{delOutOfRangeReq, txnPutReqTwoSide},
+
+			werr: nil,
+		},
+		// Then(Then(Del(a)), (Then(Del(a)), Else(Del(a))))
+		{
+			txnSuccess: []*pb.RequestOp{txnDelReq, txnDelReqTwoSide},
+
+			werr: nil,
+		},
 		{
 			txnSuccess: []*pb.RequestOp{delKeyReq, delInRangeReq, delKeyReq, delInRangeReq},
 
@@ -469,6 +531,59 @@ func TestV3TxnRangeCompare(t *testing.T) {
 	}
 }
 
+// TestV3TxnNested tests nested txns follow paths as expected.
+func TestV3TxnNestedPath(t *testing.T) {
+	defer testutil.AfterTest(t)
+	clus := NewClusterV3(t, &ClusterConfig{Size: 1})
+	defer clus.Terminate(t)
+
+	kvc := toGRPC(clus.RandClient()).KV
+
+	cmpTrue := &pb.Compare{
+		Result:      pb.Compare_EQUAL,
+		Target:      pb.Compare_VERSION,
+		Key:         []byte("k"),
+		TargetUnion: &pb.Compare_Version{Version: int64(0)},
+	}
+	cmpFalse := &pb.Compare{
+		Result:      pb.Compare_EQUAL,
+		Target:      pb.Compare_VERSION,
+		Key:         []byte("k"),
+		TargetUnion: &pb.Compare_Version{Version: int64(1)},
+	}
+
+	// generate random path to eval txns
+	topTxn := &pb.TxnRequest{}
+	txn := topTxn
+	txnPath := make([]bool, 10)
+	for i := range txnPath {
+		nextTxn := &pb.TxnRequest{}
+		op := &pb.RequestOp{Request: &pb.RequestOp_RequestTxn{RequestTxn: nextTxn}}
+		txnPath[i] = rand.Intn(2) == 0
+		if txnPath[i] {
+			txn.Compare = append(txn.Compare, cmpTrue)
+			txn.Success = append(txn.Success, op)
+		} else {
+			txn.Compare = append(txn.Compare, cmpFalse)
+			txn.Failure = append(txn.Failure, op)
+		}
+		txn = nextTxn
+	}
+
+	tresp, err := kvc.Txn(context.TODO(), topTxn)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	curTxnResp := tresp
+	for i := range txnPath {
+		if curTxnResp.Succeeded != txnPath[i] {
+			t.Fatalf("expected path %+v, got response %+v", txnPath, *tresp)
+		}
+		curTxnResp = curTxnResp.Responses[0].Response.(*pb.ResponseOp_ResponseTxn).ResponseTxn
+	}
+}
+
 // TestV3PutIgnoreValue ensures that writes with ignore_value overwrites with previous key-value pair.
 func TestV3PutIgnoreValue(t *testing.T) {
 	defer testutil.AfterTest(t)

pkg/adt/interval_tree.go

@@ -485,6 +485,15 @@ func (ivt *IntervalTree) Stab(iv Interval) (ivs []*IntervalValue) {
 	return ivs
 }
 
+// Union merges a given interval tree into the receiver.
+func (ivt *IntervalTree) Union(inIvt IntervalTree, ivl Interval) {
+	f := func(n *IntervalValue) bool {
+		ivt.Insert(n.Ivl, n.Val)
+		return true
+	}
+	inIvt.Visit(ivl, f)
+}
+
 type StringComparable string
 
 func (s StringComparable) Compare(c Comparable) int {

proxy/grpcproxy/kv.go

@@ -99,28 +99,13 @@ func (p *kvProxy) txnToCache(reqs []*pb.RequestOp, resps []*pb.ResponseOp) {
 }
 
 func (p *kvProxy) Txn(ctx context.Context, r *pb.TxnRequest) (*pb.TxnResponse, error) {
-	txn := p.kv.Txn(ctx)
-	cmps := make([]clientv3.Cmp, len(r.Compare))
-	thenops := make([]clientv3.Op, len(r.Success))
-	elseops := make([]clientv3.Op, len(r.Failure))
-
-	for i := range r.Compare {
-		cmps[i] = (clientv3.Cmp)(*r.Compare[i])
-	}
-
-	for i := range r.Success {
-		thenops[i] = requestOpToOp(r.Success[i])
-	}
-
-	for i := range r.Failure {
-		elseops[i] = requestOpToOp(r.Failure[i])
-	}
-
-	resp, err := txn.If(cmps...).Then(thenops...).Else(elseops...).Commit()
-
+	op := TxnRequestToOp(r)
+	opResp, err := p.kv.Do(ctx, op)
 	if err != nil {
 		return nil, err
 	}
+	resp := opResp.Txn()
+
 	// txn may claim an outdated key is updated; be safe and invalidate
 	for _, cmp := range r.Compare {
 		p.cache.Invalidate(cmp.Key, cmp.RangeEnd)
@@ -167,6 +152,10 @@ func requestOpToOp(union *pb.RequestOp) clientv3.Op {
 		if tv.RequestDeleteRange != nil {
 			return DelRequestToOp(tv.RequestDeleteRange)
 		}
+	case *pb.RequestOp_RequestTxn:
+		if tv.RequestTxn != nil {
+			return TxnRequestToOp(tv.RequestTxn)
+		}
 	}
 	panic("unknown request")
 }
@@ -219,3 +208,19 @@ func DelRequestToOp(r *pb.DeleteRangeRequest) clientv3.Op {
 	}
 	return clientv3.OpDelete(string(r.Key), opts...)
 }
+
+func TxnRequestToOp(r *pb.TxnRequest) clientv3.Op {
+	cmps := make([]clientv3.Cmp, len(r.Compare))
+	thenops := make([]clientv3.Op, len(r.Success))
+	elseops := make([]clientv3.Op, len(r.Failure))
+	for i := range r.Compare {
+		cmps[i] = (clientv3.Cmp)(*r.Compare[i])
+	}
+	for i := range r.Success {
+		thenops[i] = requestOpToOp(r.Success[i])
+	}
+	for i := range r.Failure {
+		elseops[i] = requestOpToOp(r.Failure[i])
+	}
+	return clientv3.OpTxn(cmps, thenops, elseops)
+}