diff --git a/services/ske/model_acl.go b/services/ske/model_acl.go
index 2daeaf4a3..4f1368fc1 100644
--- a/services/ske/model_acl.go
+++ b/services/ske/model_acl.go
@@ -50,7 +50,7 @@ func NewACLWithDefaults() *ACL {
 
 // GetAllowedCidrs returns the AllowedCidrs field value
 func (o *ACL) GetAllowedCidrs() *[]string {
-	if o == nil {
+	if o == nil || IsNil(o.AllowedCidrs) {
 		var ret *[]string
 		return ret
 	}
@@ -74,7 +74,7 @@ func (o *ACL) SetAllowedCidrs(v *[]string) {
 
 // GetEnabled returns the Enabled field value
 func (o *ACL) GetEnabled() *bool {
-	if o == nil {
+	if o == nil || IsNil(o.Enabled) {
 		var ret *bool
 		return ret
 	}
diff --git a/services/ske/model_argus.go b/services/ske/model_argus.go
index 22cf06e75..c54ba13cf 100644
--- a/services/ske/model_argus.go
+++ b/services/ske/model_argus.go
@@ -50,7 +50,7 @@ func NewArgusWithDefaults() *Argus {
 
 // GetArgusInstanceId returns the ArgusInstanceId field value
 func (o *Argus) GetArgusInstanceId() *string {
-	if o == nil {
+	if o == nil || IsNil(o.ArgusInstanceId) {
 		var ret *string
 		return ret
 	}
@@ -74,7 +74,7 @@ func (o *Argus) SetArgusInstanceId(v *string) {
 
 // GetEnabled returns the Enabled field value
 func (o *Argus) GetEnabled() *bool {
-	if o == nil {
+	if o == nil || IsNil(o.Enabled) {
 		var ret *bool
 		return ret
 	}
diff --git a/services/ske/model_cluster.go b/services/ske/model_cluster.go
index 05d06a851..23538cbb0 100644
--- a/services/ske/model_cluster.go
+++ b/services/ske/model_cluster.go
@@ -118,7 +118,7 @@ func (o *Cluster) SetHibernation(v *Hibernation) {
 
 // GetKubernetes returns the Kubernetes field value
 func (o *Cluster) GetKubernetes() *Kubernetes {
-	if o == nil {
+	if o == nil || IsNil(o.Kubernetes) {
 		var ret *Kubernetes
 		return ret
 	}
@@ -238,7 +238,7 @@ func (o *Cluster) SetNetwork(v *Network) {
 
 // GetNodepools returns the Nodepools field value
 func (o *Cluster) GetNodepools() *[]Nodepool {
-	if o == nil {
+	if o == nil || IsNil(o.Nodepools) {
 		var ret *[]Nodepool
 		return ret
 	}
diff --git a/services/ske/model_create_or_update_cluster_payload.go b/services/ske/model_create_or_update_cluster_payload.go
index a6fed5fc5..2e64551a0 100644
--- a/services/ske/model_create_or_update_cluster_payload.go
+++ b/services/ske/model_create_or_update_cluster_payload.go
@@ -117,7 +117,7 @@ func (o *CreateOrUpdateClusterPayload) SetHibernation(v *Hibernation) {
 
 // GetKubernetes returns the Kubernetes field value
 func (o *CreateOrUpdateClusterPayload) GetKubernetes() *Kubernetes {
-	if o == nil {
+	if o == nil || IsNil(o.Kubernetes) {
 		var ret *Kubernetes
 		return ret
 	}
@@ -205,7 +205,7 @@ func (o *CreateOrUpdateClusterPayload) SetNetwork(v *Network) {
 
 // GetNodepools returns the Nodepools field value
 func (o *CreateOrUpdateClusterPayload) GetNodepools() *[]Nodepool {
-	if o == nil {
+	if o == nil || IsNil(o.Nodepools) {
 		var ret *[]Nodepool
 		return ret
 	}
diff --git a/services/ske/model_dns.go b/services/ske/model_dns.go
index 401a4d9a9..7bd71dc70 100644
--- a/services/ske/model_dns.go
+++ b/services/ske/model_dns.go
@@ -48,7 +48,7 @@ func NewDNSWithDefaults() *DNS {
 
 // GetEnabled returns the Enabled field value
 func (o *DNS) GetEnabled() *bool {
-	if o == nil {
+	if o == nil || IsNil(o.Enabled) {
 		var ret *bool
 		return ret
 	}
diff --git a/services/ske/model_hibernation.go b/services/ske/model_hibernation.go
index b26dded29..5d6b655e5 100644
--- a/services/ske/model_hibernation.go
+++ b/services/ske/model_hibernation.go
@@ -45,7 +45,7 @@ func NewHibernationWithDefaults() *Hibernation {
 
 // GetSchedules returns the Schedules field value
 func (o *Hibernation) GetSchedules() *[]HibernationSchedule {
-	if o == nil {
+	if o == nil || IsNil(o.Schedules) {
 		var ret *[]HibernationSchedule
 		return ret
 	}
diff --git a/services/ske/model_hibernation_schedule.go b/services/ske/model_hibernation_schedule.go
index b2cfbe573..01dec8e29 100644
--- a/services/ske/model_hibernation_schedule.go
+++ b/services/ske/model_hibernation_schedule.go
@@ -49,7 +49,7 @@ func NewHibernationScheduleWithDefaults() *HibernationSchedule {
 
 // GetEnd returns the End field value
 func (o *HibernationSchedule) GetEnd() *string {
-	if o == nil {
+	if o == nil || IsNil(o.End) {
 		var ret *string
 		return ret
 	}
@@ -73,7 +73,7 @@ func (o *HibernationSchedule) SetEnd(v *string) {
 
 // GetStart returns the Start field value
 func (o *HibernationSchedule) GetStart() *string {
-	if o == nil {
+	if o == nil || IsNil(o.Start) {
 		var ret *string
 		return ret
 	}
diff --git a/services/ske/model_image.go b/services/ske/model_image.go
index 219220c85..46ac16e46 100644
--- a/services/ske/model_image.go
+++ b/services/ske/model_image.go
@@ -48,7 +48,7 @@ func NewImageWithDefaults() *Image {
 
 // GetName returns the Name field value
 func (o *Image) GetName() *string {
-	if o == nil {
+	if o == nil || IsNil(o.Name) {
 		var ret *string
 		return ret
 	}
@@ -72,7 +72,7 @@ func (o *Image) SetName(v *string) {
 
 // GetVersion returns the Version field value
 func (o *Image) GetVersion() *string {
-	if o == nil {
+	if o == nil || IsNil(o.Version) {
 		var ret *string
 		return ret
 	}
diff --git a/services/ske/model_kubernetes.go b/services/ske/model_kubernetes.go
index bc0eed645..b96db2e25 100644
--- a/services/ske/model_kubernetes.go
+++ b/services/ske/model_kubernetes.go
@@ -79,7 +79,7 @@ func (o *Kubernetes) SetAllowPrivilegedContainers(v *bool) {
 
 // GetVersion returns the Version field value
 func (o *Kubernetes) GetVersion() *string {
-	if o == nil {
+	if o == nil || IsNil(o.Version) {
 		var ret *string
 		return ret
 	}
diff --git a/services/ske/model_machine.go b/services/ske/model_machine.go
index 76833af5f..08eb6058e 100644
--- a/services/ske/model_machine.go
+++ b/services/ske/model_machine.go
@@ -49,7 +49,7 @@ func NewMachineWithDefaults() *Machine {
 
 // GetImage returns the Image field value
 func (o *Machine) GetImage() *Image {
-	if o == nil {
+	if o == nil || IsNil(o.Image) {
 		var ret *Image
 		return ret
 	}
@@ -73,7 +73,7 @@ func (o *Machine) SetImage(v *Image) {
 
 // GetType returns the Type field value
 func (o *Machine) GetType() *string {
-	if o == nil {
+	if o == nil || IsNil(o.Type) {
 		var ret *string
 		return ret
 	}
diff --git a/services/ske/model_maintenance.go b/services/ske/model_maintenance.go
index 531236b44..78dcd7adf 100644
--- a/services/ske/model_maintenance.go
+++ b/services/ske/model_maintenance.go
@@ -48,7 +48,7 @@ func NewMaintenanceWithDefaults() *Maintenance {
 
 // GetAutoUpdate returns the AutoUpdate field value
 func (o *Maintenance) GetAutoUpdate() *MaintenanceAutoUpdate {
-	if o == nil {
+	if o == nil || IsNil(o.AutoUpdate) {
 		var ret *MaintenanceAutoUpdate
 		return ret
 	}
@@ -72,7 +72,7 @@ func (o *Maintenance) SetAutoUpdate(v *MaintenanceAutoUpdate) {
 
 // GetTimeWindow returns the TimeWindow field value
 func (o *Maintenance) GetTimeWindow() *TimeWindow {
-	if o == nil {
+	if o == nil || IsNil(o.TimeWindow) {
 		var ret *TimeWindow
 		return ret
 	}
diff --git a/services/ske/model_nodepool.go b/services/ske/model_nodepool.go
index 8508e1f92..fe7811f5d 100644
--- a/services/ske/model_nodepool.go
+++ b/services/ske/model_nodepool.go
@@ -100,7 +100,7 @@ func (o *Nodepool) SetAllowSystemComponents(v *bool) {
 
 // GetAvailabilityZones returns the AvailabilityZones field value
 func (o *Nodepool) GetAvailabilityZones() *[]string {
-	if o == nil {
+	if o == nil || IsNil(o.AvailabilityZones) {
 		var ret *[]string
 		return ret
 	}
@@ -188,7 +188,7 @@ func (o *Nodepool) SetLabels(v *map[string]string) {
 
 // GetMachine returns the Machine field value
 func (o *Nodepool) GetMachine() *Machine {
-	if o == nil {
+	if o == nil || IsNil(o.Machine) {
 		var ret *Machine
 		return ret
 	}
@@ -276,7 +276,7 @@ func (o *Nodepool) SetMaxUnavailable(v *int64) {
 
 // GetMaximum returns the Maximum field value
 func (o *Nodepool) GetMaximum() *int64 {
-	if o == nil {
+	if o == nil || IsNil(o.Maximum) {
 		var ret *int64
 		return ret
 	}
@@ -300,7 +300,7 @@ func (o *Nodepool) SetMaximum(v *int64) {
 
 // GetMinimum returns the Minimum field value
 func (o *Nodepool) GetMinimum() *int64 {
-	if o == nil {
+	if o == nil || IsNil(o.Minimum) {
 		var ret *int64
 		return ret
 	}
@@ -324,7 +324,7 @@ func (o *Nodepool) SetMinimum(v *int64) {
 
 // GetName returns the Name field value
 func (o *Nodepool) GetName() *string {
-	if o == nil {
+	if o == nil || IsNil(o.Name) {
 		var ret *string
 		return ret
 	}
@@ -380,7 +380,7 @@ func (o *Nodepool) SetTaints(v *[]Taint) {
 
 // GetVolume returns the Volume field value
 func (o *Nodepool) GetVolume() *Volume {
-	if o == nil {
+	if o == nil || IsNil(o.Volume) {
 		var ret *Volume
 		return ret
 	}
diff --git a/services/ske/model_taint.go b/services/ske/model_taint.go
index 29150df93..1357f0430 100644
--- a/services/ske/model_taint.go
+++ b/services/ske/model_taint.go
@@ -49,7 +49,7 @@ func NewTaintWithDefaults() *Taint {
 
 // GetEffect returns the Effect field value
 func (o *Taint) GetEffect() *string {
-	if o == nil {
+	if o == nil || IsNil(o.Effect) {
 		var ret *string
 		return ret
 	}
@@ -73,7 +73,7 @@ func (o *Taint) SetEffect(v *string) {
 
 // GetKey returns the Key field value
 func (o *Taint) GetKey() *string {
-	if o == nil {
+	if o == nil || IsNil(o.Key) {
 		var ret *string
 		return ret
 	}
diff --git a/services/ske/model_time_window.go b/services/ske/model_time_window.go
index 4c5685af5..934158297 100644
--- a/services/ske/model_time_window.go
+++ b/services/ske/model_time_window.go
@@ -48,7 +48,7 @@ func NewTimeWindowWithDefaults() *TimeWindow {
 
 // GetEnd returns the End field value
 func (o *TimeWindow) GetEnd() *string {
-	if o == nil {
+	if o == nil || IsNil(o.End) {
 		var ret *string
 		return ret
 	}
@@ -72,7 +72,7 @@ func (o *TimeWindow) SetEnd(v *string) {
 
 // GetStart returns the Start field value
 func (o *TimeWindow) GetStart() *string {
-	if o == nil {
+	if o == nil || IsNil(o.Start) {
 		var ret *string
 		return ret
 	}
diff --git a/services/ske/model_volume.go b/services/ske/model_volume.go
index 5f011c075..9964c8781 100644
--- a/services/ske/model_volume.go
+++ b/services/ske/model_volume.go
@@ -47,7 +47,7 @@ func NewVolumeWithDefaults() *Volume {
 
 // GetSize returns the Size field value
 func (o *Volume) GetSize() *int64 {
-	if o == nil {
+	if o == nil || IsNil(o.Size) {
 		var ret *int64
 		return ret
 	}