diff --git a/netmap/network_info_test.go b/netmap/network_info_test.go
index c862077d..87db6fa2 100644
--- a/netmap/network_info_test.go
+++ b/netmap/network_info_test.go
@@ -5,14 +5,14 @@ import (
 	"math"
 	"testing"
 
-	"github.com/nspcc-dev/neofs-api-go/v2/netmap"
-	. "github.com/nspcc-dev/neofs-sdk-go/netmap"
+	netmapv2 "github.com/nspcc-dev/neofs-api-go/v2/netmap"
+	"github.com/nspcc-dev/neofs-sdk-go/netmap"
 	netmaptest "github.com/nspcc-dev/neofs-sdk-go/netmap/test"
 	"github.com/stretchr/testify/require"
 )
 
 func TestNetworkInfo_CurrentEpoch(t *testing.T) {
-	var x NetworkInfo
+	var x netmap.NetworkInfo
 
 	require.Zero(t, x.CurrentEpoch())
 
@@ -22,14 +22,14 @@ func TestNetworkInfo_CurrentEpoch(t *testing.T) {
 
 	require.EqualValues(t, e, x.CurrentEpoch())
 
-	var m netmap.NetworkInfo
+	var m netmapv2.NetworkInfo
 	x.WriteToV2(&m)
 
 	require.EqualValues(t, e, m.GetCurrentEpoch())
 }
 
 func TestNetworkInfo_MagicNumber(t *testing.T) {
-	var x NetworkInfo
+	var x netmap.NetworkInfo
 
 	require.Zero(t, x.MagicNumber())
 
@@ -39,14 +39,14 @@ func TestNetworkInfo_MagicNumber(t *testing.T) {
 
 	require.EqualValues(t, magic, x.MagicNumber())
 
-	var m netmap.NetworkInfo
+	var m netmapv2.NetworkInfo
 	x.WriteToV2(&m)
 
 	require.EqualValues(t, magic, m.GetMagicNumber())
 }
 
 func TestNetworkInfo_MsPerBlock(t *testing.T) {
-	var x NetworkInfo
+	var x netmap.NetworkInfo
 
 	require.Zero(t, x.MsPerBlock())
 
@@ -56,31 +56,31 @@ func TestNetworkInfo_MsPerBlock(t *testing.T) {
 
 	require.EqualValues(t, ms, x.MsPerBlock())
 
-	var m netmap.NetworkInfo
+	var m netmapv2.NetworkInfo
 	x.WriteToV2(&m)
 
 	require.EqualValues(t, ms, m.GetMsPerBlock())
 }
 
 func testConfigValue(t *testing.T,
-	getter func(x NetworkInfo) any,
-	setter func(x *NetworkInfo, val any),
+	getter func(x netmap.NetworkInfo) any,
+	setter func(x *netmap.NetworkInfo, val any),
 	val1, val2 any,
 	v2Key string, v2Val func(val any) []byte,
 ) {
-	var x NetworkInfo
+	var x netmap.NetworkInfo
 
 	require.Zero(t, getter(x))
 
 	checkVal := func(exp any) {
 		require.EqualValues(t, exp, getter(x))
 
-		var m netmap.NetworkInfo
+		var m netmapv2.NetworkInfo
 		x.WriteToV2(&m)
 
 		require.EqualValues(t, 1, m.GetNetworkConfig().NumberOfParameters())
 		found := false
-		m.GetNetworkConfig().IterateParameters(func(prm *netmap.NetworkParameter) bool {
+		m.GetNetworkConfig().IterateParameters(func(prm *netmapv2.NetworkParameter) bool {
 			require.False(t, found)
 			require.Equal(t, []byte(v2Key), prm.GetKey())
 			require.Equal(t, v2Val(exp), prm.GetValue())
@@ -99,8 +99,8 @@ func testConfigValue(t *testing.T,
 
 func TestNetworkInfo_AuditFee(t *testing.T) {
 	testConfigValue(t,
-		func(x NetworkInfo) any { return x.AuditFee() },
-		func(info *NetworkInfo, val any) { info.SetAuditFee(val.(uint64)) },
+		func(x netmap.NetworkInfo) any { return x.AuditFee() },
+		func(info *netmap.NetworkInfo, val any) { info.SetAuditFee(val.(uint64)) },
 		uint64(1), uint64(2),
 		"AuditFee", func(val any) []byte {
 			data := make([]byte, 8)
@@ -112,8 +112,8 @@ func TestNetworkInfo_AuditFee(t *testing.T) {
 
 func TestNetworkInfo_StoragePrice(t *testing.T) {
 	testConfigValue(t,
-		func(x NetworkInfo) any { return x.StoragePrice() },
-		func(info *NetworkInfo, val any) { info.SetStoragePrice(val.(uint64)) },
+		func(x netmap.NetworkInfo) any { return x.StoragePrice() },
+		func(info *netmap.NetworkInfo, val any) { info.SetStoragePrice(val.(uint64)) },
 		uint64(1), uint64(2),
 		"BasicIncomeRate", func(val any) []byte {
 			data := make([]byte, 8)
@@ -125,8 +125,8 @@ func TestNetworkInfo_StoragePrice(t *testing.T) {
 
 func TestNetworkInfo_ContainerFee(t *testing.T) {
 	testConfigValue(t,
-		func(x NetworkInfo) any { return x.ContainerFee() },
-		func(info *NetworkInfo, val any) { info.SetContainerFee(val.(uint64)) },
+		func(x netmap.NetworkInfo) any { return x.ContainerFee() },
+		func(info *netmap.NetworkInfo, val any) { info.SetContainerFee(val.(uint64)) },
 		uint64(1), uint64(2),
 		"ContainerFee", func(val any) []byte {
 			data := make([]byte, 8)
@@ -138,8 +138,8 @@ func TestNetworkInfo_ContainerFee(t *testing.T) {
 
 func TestNetworkInfo_NamedContainerFee(t *testing.T) {
 	testConfigValue(t,
-		func(x NetworkInfo) any { return x.NamedContainerFee() },
-		func(info *NetworkInfo, val any) { info.SetNamedContainerFee(val.(uint64)) },
+		func(x netmap.NetworkInfo) any { return x.NamedContainerFee() },
+		func(info *netmap.NetworkInfo, val any) { info.SetNamedContainerFee(val.(uint64)) },
 		uint64(1), uint64(2),
 		"ContainerAliasFee", func(val any) []byte {
 			data := make([]byte, 8)
@@ -151,8 +151,8 @@ func TestNetworkInfo_NamedContainerFee(t *testing.T) {
 
 func TestNetworkInfo_EigenTrustAlpha(t *testing.T) {
 	testConfigValue(t,
-		func(x NetworkInfo) any { return x.EigenTrustAlpha() },
-		func(info *NetworkInfo, val any) { info.SetEigenTrustAlpha(val.(float64)) },
+		func(x netmap.NetworkInfo) any { return x.EigenTrustAlpha() },
+		func(info *netmap.NetworkInfo, val any) { info.SetEigenTrustAlpha(val.(float64)) },
 		0.1, 0.2,
 		"EigenTrustAlpha", func(val any) []byte {
 			data := make([]byte, 8)
@@ -164,8 +164,8 @@ func TestNetworkInfo_EigenTrustAlpha(t *testing.T) {
 
 func TestNetworkInfo_NumberOfEigenTrustIterations(t *testing.T) {
 	testConfigValue(t,
-		func(x NetworkInfo) any { return x.NumberOfEigenTrustIterations() },
-		func(info *NetworkInfo, val any) { info.SetNumberOfEigenTrustIterations(val.(uint64)) },
+		func(x netmap.NetworkInfo) any { return x.NumberOfEigenTrustIterations() },
+		func(info *netmap.NetworkInfo, val any) { info.SetNumberOfEigenTrustIterations(val.(uint64)) },
 		uint64(1), uint64(2),
 		"EigenTrustIterations", func(val any) []byte {
 			data := make([]byte, 8)
@@ -177,8 +177,8 @@ func TestNetworkInfo_NumberOfEigenTrustIterations(t *testing.T) {
 
 func TestNetworkInfo_IRCandidateFee(t *testing.T) {
 	testConfigValue(t,
-		func(x NetworkInfo) any { return x.IRCandidateFee() },
-		func(info *NetworkInfo, val any) { info.SetIRCandidateFee(val.(uint64)) },
+		func(x netmap.NetworkInfo) any { return x.IRCandidateFee() },
+		func(info *netmap.NetworkInfo, val any) { info.SetIRCandidateFee(val.(uint64)) },
 		uint64(1), uint64(2),
 		"InnerRingCandidateFee", func(val any) []byte {
 			data := make([]byte, 8)
@@ -190,8 +190,8 @@ func TestNetworkInfo_IRCandidateFee(t *testing.T) {
 
 func TestNetworkInfo_MaxObjectSize(t *testing.T) {
 	testConfigValue(t,
-		func(x NetworkInfo) any { return x.MaxObjectSize() },
-		func(info *NetworkInfo, val any) { info.SetMaxObjectSize(val.(uint64)) },
+		func(x netmap.NetworkInfo) any { return x.MaxObjectSize() },
+		func(info *netmap.NetworkInfo, val any) { info.SetMaxObjectSize(val.(uint64)) },
 		uint64(1), uint64(2),
 		"MaxObjectSize", func(val any) []byte {
 			data := make([]byte, 8)
@@ -203,8 +203,8 @@ func TestNetworkInfo_MaxObjectSize(t *testing.T) {
 
 func TestNetworkInfo_WithdrawalFee(t *testing.T) {
 	testConfigValue(t,
-		func(x NetworkInfo) any { return x.WithdrawalFee() },
-		func(info *NetworkInfo, val any) { info.SetWithdrawalFee(val.(uint64)) },
+		func(x netmap.NetworkInfo) any { return x.WithdrawalFee() },
+		func(info *netmap.NetworkInfo, val any) { info.SetWithdrawalFee(val.(uint64)) },
 		uint64(1), uint64(2),
 		"WithdrawFee", func(val any) []byte {
 			data := make([]byte, 8)
@@ -216,8 +216,8 @@ func TestNetworkInfo_WithdrawalFee(t *testing.T) {
 
 func TestNetworkInfo_HomomorphicHashingDisabled(t *testing.T) {
 	testConfigValue(t,
-		func(x NetworkInfo) any { return x.HomomorphicHashingDisabled() },
-		func(info *NetworkInfo, val any) {
+		func(x netmap.NetworkInfo) any { return x.HomomorphicHashingDisabled() },
+		func(info *netmap.NetworkInfo, val any) {
 			if val.(bool) {
 				info.DisableHomomorphicHashing()
 			}
@@ -237,8 +237,8 @@ func TestNetworkInfo_HomomorphicHashingDisabled(t *testing.T) {
 
 func TestNetworkInfo_MaintenanceModeAllowed(t *testing.T) {
 	testConfigValue(t,
-		func(x NetworkInfo) any { return x.MaintenanceModeAllowed() },
-		func(info *NetworkInfo, val any) {
+		func(x netmap.NetworkInfo) any { return x.MaintenanceModeAllowed() },
+		func(info *netmap.NetworkInfo, val any) {
 			if val.(bool) {
 				info.AllowMaintenanceMode()
 			}
@@ -256,7 +256,7 @@ func TestNetworkInfo_MaintenanceModeAllowed(t *testing.T) {
 func TestNetworkInfo_Marshal(t *testing.T) {
 	v := netmaptest.NetworkInfo()
 
-	var v2 NetworkInfo
+	var v2 netmap.NetworkInfo
 	require.NoError(t, v2.Unmarshal(v.Marshal()))
 
 	require.Equal(t, v, v2)
diff --git a/netmap/policy_test.go b/netmap/policy_test.go
index 65f46c66..4efaa3dd 100644
--- a/netmap/policy_test.go
+++ b/netmap/policy_test.go
@@ -4,7 +4,7 @@ import (
 	"strings"
 	"testing"
 
-	. "github.com/nspcc-dev/neofs-sdk-go/netmap"
+	"github.com/nspcc-dev/neofs-sdk-go/netmap"
 	netmaptest "github.com/nspcc-dev/neofs-sdk-go/netmap/test"
 	"github.com/stretchr/testify/require"
 )
@@ -25,7 +25,7 @@ SELECT 1 IN City FROM SPBSSD AS SPB
 FILTER City EQ SPB AND SSD EQ true OR City EQ SPB AND Rating GE 5 AS SPBSSD`,
 	}
 
-	var p PlacementPolicy
+	var p netmap.PlacementPolicy
 
 	for _, testCase := range testCases {
 		require.NoError(t, p.DecodeString(testCase))
@@ -49,7 +49,7 @@ func TestPlacementPolicyEncoding(t *testing.T) {
 	v := netmaptest.PlacementPolicy()
 
 	t.Run("binary", func(t *testing.T) {
-		var v2 PlacementPolicy
+		var v2 netmap.PlacementPolicy
 		require.NoError(t, v2.Unmarshal(v.Marshal()))
 
 		require.Equal(t, v, v2)
@@ -59,7 +59,7 @@ func TestPlacementPolicyEncoding(t *testing.T) {
 		data, err := v.MarshalJSON()
 		require.NoError(t, err)
 
-		var v2 PlacementPolicy
+		var v2 netmap.PlacementPolicy
 		require.NoError(t, v2.UnmarshalJSON(data))
 
 		require.Equal(t, v, v2)
diff --git a/object/attribute.go b/object/attribute.go
index c414cb73..4b6b5e2e 100644
--- a/object/attribute.go
+++ b/object/attribute.go
@@ -30,15 +30,13 @@ func NewAttributeFromV2(aV2 *object.Attribute) *Attribute {
 	return (*Attribute)(aV2)
 }
 
-// NewAttribute creates and initializes blank [Attribute].
-//
-// Works similar as NewAttributeFromV2(new(Attribute)).
-//
-// Defaults:
-//   - key: "";
-//   - value: "".
-func NewAttribute() *Attribute {
-	return NewAttributeFromV2(new(object.Attribute))
+// NewAttribute creates and initializes new [Attribute].
+func NewAttribute(key, value string) *Attribute {
+	attr := new(object.Attribute)
+	attr.SetKey(key)
+	attr.SetValue(value)
+
+	return NewAttributeFromV2(attr)
 }
 
 // Key returns key to the object attribute.
diff --git a/object/attribute_test.go b/object/attribute_test.go
index d5f1b3f9..f87bc73f 100644
--- a/object/attribute_test.go
+++ b/object/attribute_test.go
@@ -10,9 +10,7 @@ import (
 func TestAttribute(t *testing.T) {
 	key, val := "some key", "some value"
 
-	a := NewAttribute()
-	a.SetKey(key)
-	a.SetValue(val)
+	a := NewAttribute(key, val)
 
 	require.Equal(t, key, a.Key())
 	require.Equal(t, val, a.Value())
@@ -24,15 +22,13 @@ func TestAttribute(t *testing.T) {
 }
 
 func TestAttributeEncoding(t *testing.T) {
-	a := NewAttribute()
-	a.SetKey("key")
-	a.SetValue("value")
+	a := NewAttribute("key", "value")
 
 	t.Run("binary", func(t *testing.T) {
 		data, err := a.Marshal()
 		require.NoError(t, err)
 
-		a2 := NewAttribute()
+		a2 := NewAttribute("", "")
 		require.NoError(t, a2.Unmarshal(data))
 
 		require.Equal(t, a, a2)
@@ -42,7 +38,7 @@ func TestAttributeEncoding(t *testing.T) {
 		data, err := a.MarshalJSON()
 		require.NoError(t, err)
 
-		a2 := NewAttribute()
+		a2 := NewAttribute("", "")
 		require.NoError(t, a2.UnmarshalJSON(data))
 
 		require.Equal(t, a, a2)
@@ -67,7 +63,7 @@ func TestAttribute_ToV2(t *testing.T) {
 
 func TestNewAttribute(t *testing.T) {
 	t.Run("default values", func(t *testing.T) {
-		a := NewAttribute()
+		a := NewAttribute("", "")
 
 		// check initial values
 		require.Empty(t, a.Key())
@@ -79,4 +75,17 @@ func TestNewAttribute(t *testing.T) {
 		require.Empty(t, aV2.GetKey())
 		require.Empty(t, aV2.GetValue())
 	})
+
+	t.Run("pre installed key and value", func(t *testing.T) {
+		a := NewAttribute("key", "value")
+
+		require.NotEmpty(t, a.Key())
+		require.NotEmpty(t, a.Value())
+
+		// convert to v2 message
+		aV2 := a.ToV2()
+
+		require.NotEmpty(t, aV2.GetKey())
+		require.NotEmpty(t, aV2.GetValue())
+	})
 }
diff --git a/object/test/generate.go b/object/test/generate.go
index f8e2f2bd..a4194bc2 100644
--- a/object/test/generate.go
+++ b/object/test/generate.go
@@ -26,10 +26,7 @@ func Range() object.Range {
 
 // Attribute returns random object.Attribute.
 func Attribute() object.Attribute {
-	x := object.NewAttribute()
-
-	x.SetKey("key")
-	x.SetValue("value")
+	x := object.NewAttribute("key", "value")
 
 	return *x
 }
diff --git a/user/id_test.go b/user/id_test.go
index df5fd5bd..525164df 100644
--- a/user/id_test.go
+++ b/user/id_test.go
@@ -8,7 +8,7 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/util"
 	"github.com/nspcc-dev/neo-go/pkg/util/slice"
 	"github.com/nspcc-dev/neofs-api-go/v2/refs"
-	. "github.com/nspcc-dev/neofs-sdk-go/user"
+	"github.com/nspcc-dev/neofs-sdk-go/user"
 	usertest "github.com/nspcc-dev/neofs-sdk-go/user/test"
 	"github.com/stretchr/testify/require"
 )
@@ -17,7 +17,7 @@ func TestID_WalletBytes(t *testing.T) {
 	var scriptHash util.Uint160
 	rand.Read(scriptHash[:])
 
-	var id ID
+	var id user.ID
 	id.SetScriptHash(scriptHash)
 
 	w := id.WalletBytes()
@@ -33,13 +33,13 @@ func TestID_SetScriptHash(t *testing.T) {
 	var scriptHash util.Uint160
 	rand.Read(scriptHash[:])
 
-	var id ID
+	var id user.ID
 	id.SetScriptHash(scriptHash)
 
 	var m refs.OwnerID
 	id.WriteToV2(&m)
 
-	var id2 ID
+	var id2 user.ID
 
 	err := id2.ReadFromV2(m)
 	require.NoError(t, err)
@@ -50,7 +50,7 @@ func TestID_SetScriptHash(t *testing.T) {
 func TestV2_ID(t *testing.T) {
 	id := usertest.ID(t)
 	var m refs.OwnerID
-	var id2 ID
+	var id2 user.ID
 
 	t.Run("OK", func(t *testing.T) {
 		id.WriteToV2(&m)
@@ -98,7 +98,7 @@ func TestID_EncodeToString(t *testing.T) {
 	_, err := base58.Decode(s)
 	require.NoError(t, err)
 
-	var id2 ID
+	var id2 user.ID
 
 	err = id2.DecodeString(s)
 	require.NoError(t, err)