diff --git a/services/mariadb/model_backup.go b/services/mariadb/model_backup.go
index 61d6e4cbc..3984d8afa 100644
--- a/services/mariadb/model_backup.go
+++ b/services/mariadb/model_backup.go
@@ -86,7 +86,7 @@ func (o *Backup) SetDownloadable(v *bool) {
 
 // GetFinishedAt returns the FinishedAt field value
 func (o *Backup) GetFinishedAt() *string {
-	if o == nil {
+	if o == nil || IsNil(o.FinishedAt) {
 		var ret *string
 		return ret
 	}
@@ -110,7 +110,7 @@ func (o *Backup) SetFinishedAt(v *string) {
 
 // GetId returns the Id field value
 func (o *Backup) GetId() *int64 {
-	if o == nil {
+	if o == nil || IsNil(o.Id) {
 		var ret *int64
 		return ret
 	}
@@ -166,7 +166,7 @@ func (o *Backup) SetSize(v *int64) {
 
 // GetStatus returns the Status field value
 func (o *Backup) GetStatus() *string {
-	if o == nil {
+	if o == nil || IsNil(o.Status) {
 		var ret *string
 		return ret
 	}
diff --git a/services/mariadb/model_create_backup_response_item.go b/services/mariadb/model_create_backup_response_item.go
index 211784f1e..27d4b4cd9 100644
--- a/services/mariadb/model_create_backup_response_item.go
+++ b/services/mariadb/model_create_backup_response_item.go
@@ -48,7 +48,7 @@ func NewCreateBackupResponseItemWithDefaults() *CreateBackupResponseItem {
 
 // GetId returns the Id field value
 func (o *CreateBackupResponseItem) GetId() *int64 {
-	if o == nil {
+	if o == nil || IsNil(o.Id) {
 		var ret *int64
 		return ret
 	}
@@ -72,7 +72,7 @@ func (o *CreateBackupResponseItem) SetId(v *int64) {
 
 // GetMessage returns the Message field value
 func (o *CreateBackupResponseItem) GetMessage() *string {
-	if o == nil {
+	if o == nil || IsNil(o.Message) {
 		var ret *string
 		return ret
 	}
diff --git a/services/mariadb/model_create_instance_payload.go b/services/mariadb/model_create_instance_payload.go
index f9b3a8300..2075313dc 100644
--- a/services/mariadb/model_create_instance_payload.go
+++ b/services/mariadb/model_create_instance_payload.go
@@ -49,7 +49,7 @@ func NewCreateInstancePayloadWithDefaults() *CreateInstancePayload {
 
 // GetInstanceName returns the InstanceName field value
 func (o *CreateInstancePayload) GetInstanceName() *string {
-	if o == nil {
+	if o == nil || IsNil(o.InstanceName) {
 		var ret *string
 		return ret
 	}
@@ -105,7 +105,7 @@ func (o *CreateInstancePayload) SetParameters(v *InstanceParameters) {
 
 // GetPlanId returns the PlanId field value
 func (o *CreateInstancePayload) GetPlanId() *string {
-	if o == nil {
+	if o == nil || IsNil(o.PlanId) {
 		var ret *string
 		return ret
 	}
diff --git a/services/mariadb/model_create_instance_response.go b/services/mariadb/model_create_instance_response.go
index 7e37185cf..0df2aaf8d 100644
--- a/services/mariadb/model_create_instance_response.go
+++ b/services/mariadb/model_create_instance_response.go
@@ -45,7 +45,7 @@ func NewCreateInstanceResponseWithDefaults() *CreateInstanceResponse {
 
 // GetInstanceId returns the InstanceId field value
 func (o *CreateInstanceResponse) GetInstanceId() *string {
-	if o == nil {
+	if o == nil || IsNil(o.InstanceId) {
 		var ret *string
 		return ret
 	}
diff --git a/services/mariadb/model_credentials.go b/services/mariadb/model_credentials.go
index 930277bf0..43e0c10b8 100644
--- a/services/mariadb/model_credentials.go
+++ b/services/mariadb/model_credentials.go
@@ -55,7 +55,7 @@ func NewCredentialsWithDefaults() *Credentials {
 
 // GetHost returns the Host field value
 func (o *Credentials) GetHost() *string {
-	if o == nil {
+	if o == nil || IsNil(o.Host) {
 		var ret *string
 		return ret
 	}
@@ -143,7 +143,7 @@ func (o *Credentials) SetName(v *string) {
 
 // GetPassword returns the Password field value
 func (o *Credentials) GetPassword() *string {
-	if o == nil {
+	if o == nil || IsNil(o.Password) {
 		var ret *string
 		return ret
 	}
@@ -231,7 +231,7 @@ func (o *Credentials) SetUri(v *string) {
 
 // GetUsername returns the Username field value
 func (o *Credentials) GetUsername() *string {
-	if o == nil {
+	if o == nil || IsNil(o.Username) {
 		var ret *string
 		return ret
 	}
diff --git a/services/mariadb/model_credentials_list_item.go b/services/mariadb/model_credentials_list_item.go
index 891e71c21..7aab69363 100644
--- a/services/mariadb/model_credentials_list_item.go
+++ b/services/mariadb/model_credentials_list_item.go
@@ -45,7 +45,7 @@ func NewCredentialsListItemWithDefaults() *CredentialsListItem {
 
 // GetId returns the Id field value
 func (o *CredentialsListItem) GetId() *string {
-	if o == nil {
+	if o == nil || IsNil(o.Id) {
 		var ret *string
 		return ret
 	}
diff --git a/services/mariadb/model_credentials_response.go b/services/mariadb/model_credentials_response.go
index bc89d0272..e132d645f 100644
--- a/services/mariadb/model_credentials_response.go
+++ b/services/mariadb/model_credentials_response.go
@@ -49,7 +49,7 @@ func NewCredentialsResponseWithDefaults() *CredentialsResponse {
 
 // GetId returns the Id field value
 func (o *CredentialsResponse) GetId() *string {
-	if o == nil {
+	if o == nil || IsNil(o.Id) {
 		var ret *string
 		return ret
 	}
@@ -105,7 +105,7 @@ func (o *CredentialsResponse) SetRaw(v *RawCredentials) {
 
 // GetUri returns the Uri field value
 func (o *CredentialsResponse) GetUri() *string {
-	if o == nil {
+	if o == nil || IsNil(o.Uri) {
 		var ret *string
 		return ret
 	}
diff --git a/services/mariadb/model_error.go b/services/mariadb/model_error.go
index 4774ab044..f6d5506df 100644
--- a/services/mariadb/model_error.go
+++ b/services/mariadb/model_error.go
@@ -48,7 +48,7 @@ func NewErrorWithDefaults() *Error {
 
 // GetDescription returns the Description field value
 func (o *Error) GetDescription() *string {
-	if o == nil {
+	if o == nil || IsNil(o.Description) {
 		var ret *string
 		return ret
 	}
@@ -72,7 +72,7 @@ func (o *Error) SetDescription(v *string) {
 
 // GetError returns the Error field value
 func (o *Error) GetError() *string {
-	if o == nil {
+	if o == nil || IsNil(o.Error) {
 		var ret *string
 		return ret
 	}
diff --git a/services/mariadb/model_get_metrics_response.go b/services/mariadb/model_get_metrics_response.go
index 5cd374d91..749bea1fd 100644
--- a/services/mariadb/model_get_metrics_response.go
+++ b/services/mariadb/model_get_metrics_response.go
@@ -137,7 +137,7 @@ func (o *GetMetricsResponse) SetCpuIdleTime(v *int64) {
 
 // GetCpuLoadPercent returns the CpuLoadPercent field value
 func (o *GetMetricsResponse) GetCpuLoadPercent() *float64 {
-	if o == nil {
+	if o == nil || IsNil(o.CpuLoadPercent) {
 		var ret *float64
 		return ret
 	}
@@ -225,7 +225,7 @@ func (o *GetMetricsResponse) SetCpuUserTime(v *int64) {
 
 // GetDiskEphemeralTotal returns the DiskEphemeralTotal field value
 func (o *GetMetricsResponse) GetDiskEphemeralTotal() *int64 {
-	if o == nil {
+	if o == nil || IsNil(o.DiskEphemeralTotal) {
 		var ret *int64
 		return ret
 	}
@@ -249,7 +249,7 @@ func (o *GetMetricsResponse) SetDiskEphemeralTotal(v *int64) {
 
 // GetDiskEphemeralUsed returns the DiskEphemeralUsed field value
 func (o *GetMetricsResponse) GetDiskEphemeralUsed() *int64 {
-	if o == nil {
+	if o == nil || IsNil(o.DiskEphemeralUsed) {
 		var ret *int64
 		return ret
 	}
@@ -273,7 +273,7 @@ func (o *GetMetricsResponse) SetDiskEphemeralUsed(v *int64) {
 
 // GetDiskPersistentTotal returns the DiskPersistentTotal field value
 func (o *GetMetricsResponse) GetDiskPersistentTotal() *int64 {
-	if o == nil {
+	if o == nil || IsNil(o.DiskPersistentTotal) {
 		var ret *int64
 		return ret
 	}
@@ -297,7 +297,7 @@ func (o *GetMetricsResponse) SetDiskPersistentTotal(v *int64) {
 
 // GetDiskPersistentUsed returns the DiskPersistentUsed field value
 func (o *GetMetricsResponse) GetDiskPersistentUsed() *int64 {
-	if o == nil {
+	if o == nil || IsNil(o.DiskPersistentUsed) {
 		var ret *int64
 		return ret
 	}
@@ -321,7 +321,7 @@ func (o *GetMetricsResponse) SetDiskPersistentUsed(v *int64) {
 
 // GetLoad1 returns the Load1 field value
 func (o *GetMetricsResponse) GetLoad1() *float64 {
-	if o == nil {
+	if o == nil || IsNil(o.Load1) {
 		var ret *float64
 		return ret
 	}
@@ -345,7 +345,7 @@ func (o *GetMetricsResponse) SetLoad1(v *float64) {
 
 // GetLoad15 returns the Load15 field value
 func (o *GetMetricsResponse) GetLoad15() *float64 {
-	if o == nil {
+	if o == nil || IsNil(o.Load15) {
 		var ret *float64
 		return ret
 	}
@@ -369,7 +369,7 @@ func (o *GetMetricsResponse) SetLoad15(v *float64) {
 
 // GetLoad5 returns the Load5 field value
 func (o *GetMetricsResponse) GetLoad5() *float64 {
-	if o == nil {
+	if o == nil || IsNil(o.Load5) {
 		var ret *float64
 		return ret
 	}
@@ -393,7 +393,7 @@ func (o *GetMetricsResponse) SetLoad5(v *float64) {
 
 // GetMemoryTotal returns the MemoryTotal field value
 func (o *GetMetricsResponse) GetMemoryTotal() *int64 {
-	if o == nil {
+	if o == nil || IsNil(o.MemoryTotal) {
 		var ret *int64
 		return ret
 	}
@@ -417,7 +417,7 @@ func (o *GetMetricsResponse) SetMemoryTotal(v *int64) {
 
 // GetMemoryUsed returns the MemoryUsed field value
 func (o *GetMetricsResponse) GetMemoryUsed() *int64 {
-	if o == nil {
+	if o == nil || IsNil(o.MemoryUsed) {
 		var ret *int64
 		return ret
 	}
@@ -441,7 +441,7 @@ func (o *GetMetricsResponse) SetMemoryUsed(v *int64) {
 
 // GetParachuteDiskEphemeralActivated returns the ParachuteDiskEphemeralActivated field value
 func (o *GetMetricsResponse) GetParachuteDiskEphemeralActivated() *bool {
-	if o == nil {
+	if o == nil || IsNil(o.ParachuteDiskEphemeralActivated) {
 		var ret *bool
 		return ret
 	}
@@ -465,7 +465,7 @@ func (o *GetMetricsResponse) SetParachuteDiskEphemeralActivated(v *bool) {
 
 // GetParachuteDiskEphemeralTotal returns the ParachuteDiskEphemeralTotal field value
 func (o *GetMetricsResponse) GetParachuteDiskEphemeralTotal() *int64 {
-	if o == nil {
+	if o == nil || IsNil(o.ParachuteDiskEphemeralTotal) {
 		var ret *int64
 		return ret
 	}
@@ -489,7 +489,7 @@ func (o *GetMetricsResponse) SetParachuteDiskEphemeralTotal(v *int64) {
 
 // GetParachuteDiskEphemeralUsed returns the ParachuteDiskEphemeralUsed field value
 func (o *GetMetricsResponse) GetParachuteDiskEphemeralUsed() *int64 {
-	if o == nil {
+	if o == nil || IsNil(o.ParachuteDiskEphemeralUsed) {
 		var ret *int64
 		return ret
 	}
@@ -513,7 +513,7 @@ func (o *GetMetricsResponse) SetParachuteDiskEphemeralUsed(v *int64) {
 
 // GetParachuteDiskEphemeralUsedPercent returns the ParachuteDiskEphemeralUsedPercent field value
 func (o *GetMetricsResponse) GetParachuteDiskEphemeralUsedPercent() *int64 {
-	if o == nil {
+	if o == nil || IsNil(o.ParachuteDiskEphemeralUsedPercent) {
 		var ret *int64
 		return ret
 	}
@@ -537,7 +537,7 @@ func (o *GetMetricsResponse) SetParachuteDiskEphemeralUsedPercent(v *int64) {
 
 // GetParachuteDiskEphemeralUsedThreshold returns the ParachuteDiskEphemeralUsedThreshold field value
 func (o *GetMetricsResponse) GetParachuteDiskEphemeralUsedThreshold() *int64 {
-	if o == nil {
+	if o == nil || IsNil(o.ParachuteDiskEphemeralUsedThreshold) {
 		var ret *int64
 		return ret
 	}
@@ -561,7 +561,7 @@ func (o *GetMetricsResponse) SetParachuteDiskEphemeralUsedThreshold(v *int64) {
 
 // GetParachuteDiskPersistentActivated returns the ParachuteDiskPersistentActivated field value
 func (o *GetMetricsResponse) GetParachuteDiskPersistentActivated() *bool {
-	if o == nil {
+	if o == nil || IsNil(o.ParachuteDiskPersistentActivated) {
 		var ret *bool
 		return ret
 	}
@@ -585,7 +585,7 @@ func (o *GetMetricsResponse) SetParachuteDiskPersistentActivated(v *bool) {
 
 // GetParachuteDiskPersistentTotal returns the ParachuteDiskPersistentTotal field value
 func (o *GetMetricsResponse) GetParachuteDiskPersistentTotal() *int64 {
-	if o == nil {
+	if o == nil || IsNil(o.ParachuteDiskPersistentTotal) {
 		var ret *int64
 		return ret
 	}
@@ -609,7 +609,7 @@ func (o *GetMetricsResponse) SetParachuteDiskPersistentTotal(v *int64) {
 
 // GetParachuteDiskPersistentUsed returns the ParachuteDiskPersistentUsed field value
 func (o *GetMetricsResponse) GetParachuteDiskPersistentUsed() *int64 {
-	if o == nil {
+	if o == nil || IsNil(o.ParachuteDiskPersistentUsed) {
 		var ret *int64
 		return ret
 	}
@@ -633,7 +633,7 @@ func (o *GetMetricsResponse) SetParachuteDiskPersistentUsed(v *int64) {
 
 // GetParachuteDiskPersistentUsedPercent returns the ParachuteDiskPersistentUsedPercent field value
 func (o *GetMetricsResponse) GetParachuteDiskPersistentUsedPercent() *int64 {
-	if o == nil {
+	if o == nil || IsNil(o.ParachuteDiskPersistentUsedPercent) {
 		var ret *int64
 		return ret
 	}
@@ -657,7 +657,7 @@ func (o *GetMetricsResponse) SetParachuteDiskPersistentUsedPercent(v *int64) {
 
 // GetParachuteDiskPersistentUsedThreshold returns the ParachuteDiskPersistentUsedThreshold field value
 func (o *GetMetricsResponse) GetParachuteDiskPersistentUsedThreshold() *int64 {
-	if o == nil {
+	if o == nil || IsNil(o.ParachuteDiskPersistentUsedThreshold) {
 		var ret *int64
 		return ret
 	}
diff --git a/services/mariadb/model_instance.go b/services/mariadb/model_instance.go
index 8fe308635..0ddc7d268 100644
--- a/services/mariadb/model_instance.go
+++ b/services/mariadb/model_instance.go
@@ -81,7 +81,7 @@ func NewInstanceWithDefaults() *Instance {
 
 // GetCfGuid returns the CfGuid field value
 func (o *Instance) GetCfGuid() *string {
-	if o == nil {
+	if o == nil || IsNil(o.CfGuid) {
 		var ret *string
 		return ret
 	}
@@ -105,7 +105,7 @@ func (o *Instance) SetCfGuid(v *string) {
 
 // GetCfOrganizationGuid returns the CfOrganizationGuid field value
 func (o *Instance) GetCfOrganizationGuid() *string {
-	if o == nil {
+	if o == nil || IsNil(o.CfOrganizationGuid) {
 		var ret *string
 		return ret
 	}
@@ -129,7 +129,7 @@ func (o *Instance) SetCfOrganizationGuid(v *string) {
 
 // GetCfSpaceGuid returns the CfSpaceGuid field value
 func (o *Instance) GetCfSpaceGuid() *string {
-	if o == nil {
+	if o == nil || IsNil(o.CfSpaceGuid) {
 		var ret *string
 		return ret
 	}
@@ -153,7 +153,7 @@ func (o *Instance) SetCfSpaceGuid(v *string) {
 
 // GetDashboardUrl returns the DashboardUrl field value
 func (o *Instance) GetDashboardUrl() *string {
-	if o == nil {
+	if o == nil || IsNil(o.DashboardUrl) {
 		var ret *string
 		return ret
 	}
@@ -177,7 +177,7 @@ func (o *Instance) SetDashboardUrl(v *string) {
 
 // GetImageUrl returns the ImageUrl field value
 func (o *Instance) GetImageUrl() *string {
-	if o == nil {
+	if o == nil || IsNil(o.ImageUrl) {
 		var ret *string
 		return ret
 	}
@@ -233,7 +233,7 @@ func (o *Instance) SetInstanceId(v *string) {
 
 // GetLastOperation returns the LastOperation field value
 func (o *Instance) GetLastOperation() *InstanceLastOperation {
-	if o == nil {
+	if o == nil || IsNil(o.LastOperation) {
 		var ret *InstanceLastOperation
 		return ret
 	}
@@ -257,7 +257,7 @@ func (o *Instance) SetLastOperation(v *InstanceLastOperation) {
 
 // GetName returns the Name field value
 func (o *Instance) GetName() *string {
-	if o == nil {
+	if o == nil || IsNil(o.Name) {
 		var ret *string
 		return ret
 	}
@@ -282,7 +282,7 @@ func (o *Instance) SetName(v *string) {
 // GetOfferingName returns the OfferingName field value
 // Deprecated
 func (o *Instance) GetOfferingName() *string {
-	if o == nil {
+	if o == nil || IsNil(o.OfferingName) {
 		var ret *string
 		return ret
 	}
@@ -308,7 +308,7 @@ func (o *Instance) SetOfferingName(v *string) {
 
 // GetOfferingVersion returns the OfferingVersion field value
 func (o *Instance) GetOfferingVersion() *string {
-	if o == nil {
+	if o == nil || IsNil(o.OfferingVersion) {
 		var ret *string
 		return ret
 	}
@@ -332,7 +332,7 @@ func (o *Instance) SetOfferingVersion(v *string) {
 
 // GetParameters returns the Parameters field value
 func (o *Instance) GetParameters() *map[string]interface{} {
-	if o == nil {
+	if o == nil || IsNil(o.Parameters) {
 		var ret *map[string]interface{}
 		return ret
 	}
@@ -356,7 +356,7 @@ func (o *Instance) SetParameters(v *map[string]interface{}) {
 
 // GetPlanId returns the PlanId field value
 func (o *Instance) GetPlanId() *string {
-	if o == nil {
+	if o == nil || IsNil(o.PlanId) {
 		var ret *string
 		return ret
 	}
@@ -380,7 +380,7 @@ func (o *Instance) SetPlanId(v *string) {
 
 // GetPlanName returns the PlanName field value
 func (o *Instance) GetPlanName() *string {
-	if o == nil {
+	if o == nil || IsNil(o.PlanName) {
 		var ret *string
 		return ret
 	}
diff --git a/services/mariadb/model_instance_last_operation.go b/services/mariadb/model_instance_last_operation.go
index 4ee40f7bf..f9274a20b 100644
--- a/services/mariadb/model_instance_last_operation.go
+++ b/services/mariadb/model_instance_last_operation.go
@@ -51,7 +51,7 @@ func NewInstanceLastOperationWithDefaults() *InstanceLastOperation {
 
 // GetDescription returns the Description field value
 func (o *InstanceLastOperation) GetDescription() *string {
-	if o == nil {
+	if o == nil || IsNil(o.Description) {
 		var ret *string
 		return ret
 	}
@@ -75,7 +75,7 @@ func (o *InstanceLastOperation) SetDescription(v *string) {
 
 // GetState returns the State field value
 func (o *InstanceLastOperation) GetState() *string {
-	if o == nil {
+	if o == nil || IsNil(o.State) {
 		var ret *string
 		return ret
 	}
@@ -99,7 +99,7 @@ func (o *InstanceLastOperation) SetState(v *string) {
 
 // GetType returns the Type field value
 func (o *InstanceLastOperation) GetType() *string {
-	if o == nil {
+	if o == nil || IsNil(o.Type) {
 		var ret *string
 		return ret
 	}
diff --git a/services/mariadb/model_instance_schema.go b/services/mariadb/model_instance_schema.go
index 12fc71300..1cca4797c 100644
--- a/services/mariadb/model_instance_schema.go
+++ b/services/mariadb/model_instance_schema.go
@@ -48,7 +48,7 @@ func NewInstanceSchemaWithDefaults() *InstanceSchema {
 
 // GetCreate returns the Create field value
 func (o *InstanceSchema) GetCreate() *Schema {
-	if o == nil {
+	if o == nil || IsNil(o.Create) {
 		var ret *Schema
 		return ret
 	}
@@ -72,7 +72,7 @@ func (o *InstanceSchema) SetCreate(v *Schema) {
 
 // GetUpdate returns the Update field value
 func (o *InstanceSchema) GetUpdate() *Schema {
-	if o == nil {
+	if o == nil || IsNil(o.Update) {
 		var ret *Schema
 		return ret
 	}
diff --git a/services/mariadb/model_list_backups_response.go b/services/mariadb/model_list_backups_response.go
index 52c268782..49d6148ea 100644
--- a/services/mariadb/model_list_backups_response.go
+++ b/services/mariadb/model_list_backups_response.go
@@ -45,7 +45,7 @@ func NewListBackupsResponseWithDefaults() *ListBackupsResponse {
 
 // GetInstanceBackups returns the InstanceBackups field value
 func (o *ListBackupsResponse) GetInstanceBackups() *[]Backup {
-	if o == nil {
+	if o == nil || IsNil(o.InstanceBackups) {
 		var ret *[]Backup
 		return ret
 	}
diff --git a/services/mariadb/model_list_credentials_response.go b/services/mariadb/model_list_credentials_response.go
index 5342e8f2c..e27ad3b18 100644
--- a/services/mariadb/model_list_credentials_response.go
+++ b/services/mariadb/model_list_credentials_response.go
@@ -45,7 +45,7 @@ func NewListCredentialsResponseWithDefaults() *ListCredentialsResponse {
 
 // GetCredentialsList returns the CredentialsList field value
 func (o *ListCredentialsResponse) GetCredentialsList() *[]CredentialsListItem {
-	if o == nil {
+	if o == nil || IsNil(o.CredentialsList) {
 		var ret *[]CredentialsListItem
 		return ret
 	}
diff --git a/services/mariadb/model_list_instances_response.go b/services/mariadb/model_list_instances_response.go
index 571aa724f..c0a09db8e 100644
--- a/services/mariadb/model_list_instances_response.go
+++ b/services/mariadb/model_list_instances_response.go
@@ -45,7 +45,7 @@ func NewListInstancesResponseWithDefaults() *ListInstancesResponse {
 
 // GetInstances returns the Instances field value
 func (o *ListInstancesResponse) GetInstances() *[]Instance {
-	if o == nil {
+	if o == nil || IsNil(o.Instances) {
 		var ret *[]Instance
 		return ret
 	}
diff --git a/services/mariadb/model_list_offerings_response.go b/services/mariadb/model_list_offerings_response.go
index b3714d271..0b8ba65a1 100644
--- a/services/mariadb/model_list_offerings_response.go
+++ b/services/mariadb/model_list_offerings_response.go
@@ -45,7 +45,7 @@ func NewListOfferingsResponseWithDefaults() *ListOfferingsResponse {
 
 // GetOfferings returns the Offerings field value
 func (o *ListOfferingsResponse) GetOfferings() *[]Offering {
-	if o == nil {
+	if o == nil || IsNil(o.Offerings) {
 		var ret *[]Offering
 		return ret
 	}
diff --git a/services/mariadb/model_list_restores_response.go b/services/mariadb/model_list_restores_response.go
index 5962fbb53..1fc5bf0dc 100644
--- a/services/mariadb/model_list_restores_response.go
+++ b/services/mariadb/model_list_restores_response.go
@@ -45,7 +45,7 @@ func NewListRestoresResponseWithDefaults() *ListRestoresResponse {
 
 // GetInstanceRestores returns the InstanceRestores field value
 func (o *ListRestoresResponse) GetInstanceRestores() *[]Restore {
-	if o == nil {
+	if o == nil || IsNil(o.InstanceRestores) {
 		var ret *[]Restore
 		return ret
 	}
diff --git a/services/mariadb/model_offering.go b/services/mariadb/model_offering.go
index 6077fffba..dbc74d02e 100644
--- a/services/mariadb/model_offering.go
+++ b/services/mariadb/model_offering.go
@@ -68,7 +68,7 @@ func NewOfferingWithDefaults() *Offering {
 
 // GetDescription returns the Description field value
 func (o *Offering) GetDescription() *string {
-	if o == nil {
+	if o == nil || IsNil(o.Description) {
 		var ret *string
 		return ret
 	}
@@ -92,7 +92,7 @@ func (o *Offering) SetDescription(v *string) {
 
 // GetDocumentationUrl returns the DocumentationUrl field value
 func (o *Offering) GetDocumentationUrl() *string {
-	if o == nil {
+	if o == nil || IsNil(o.DocumentationUrl) {
 		var ret *string
 		return ret
 	}
@@ -116,7 +116,7 @@ func (o *Offering) SetDocumentationUrl(v *string) {
 
 // GetImageUrl returns the ImageUrl field value
 func (o *Offering) GetImageUrl() *string {
-	if o == nil {
+	if o == nil || IsNil(o.ImageUrl) {
 		var ret *string
 		return ret
 	}
@@ -140,7 +140,7 @@ func (o *Offering) SetImageUrl(v *string) {
 
 // GetLatest returns the Latest field value
 func (o *Offering) GetLatest() *bool {
-	if o == nil {
+	if o == nil || IsNil(o.Latest) {
 		var ret *bool
 		return ret
 	}
@@ -196,7 +196,7 @@ func (o *Offering) SetLifecycle(v *string) {
 
 // GetName returns the Name field value
 func (o *Offering) GetName() *string {
-	if o == nil {
+	if o == nil || IsNil(o.Name) {
 		var ret *string
 		return ret
 	}
@@ -220,7 +220,7 @@ func (o *Offering) SetName(v *string) {
 
 // GetPlans returns the Plans field value
 func (o *Offering) GetPlans() *[]Plan {
-	if o == nil {
+	if o == nil || IsNil(o.Plans) {
 		var ret *[]Plan
 		return ret
 	}
@@ -244,7 +244,7 @@ func (o *Offering) SetPlans(v *[]Plan) {
 
 // GetQuotaCount returns the QuotaCount field value
 func (o *Offering) GetQuotaCount() *int64 {
-	if o == nil {
+	if o == nil || IsNil(o.QuotaCount) {
 		var ret *int64
 		return ret
 	}
@@ -300,7 +300,7 @@ func (o *Offering) SetSchema(v *InstanceSchema) {
 
 // GetVersion returns the Version field value
 func (o *Offering) GetVersion() *string {
-	if o == nil {
+	if o == nil || IsNil(o.Version) {
 		var ret *string
 		return ret
 	}
diff --git a/services/mariadb/model_plan.go b/services/mariadb/model_plan.go
index 40962074d..6ec555531 100644
--- a/services/mariadb/model_plan.go
+++ b/services/mariadb/model_plan.go
@@ -57,7 +57,7 @@ func NewPlanWithDefaults() *Plan {
 
 // GetDescription returns the Description field value
 func (o *Plan) GetDescription() *string {
-	if o == nil {
+	if o == nil || IsNil(o.Description) {
 		var ret *string
 		return ret
 	}
@@ -81,7 +81,7 @@ func (o *Plan) SetDescription(v *string) {
 
 // GetFree returns the Free field value
 func (o *Plan) GetFree() *bool {
-	if o == nil {
+	if o == nil || IsNil(o.Free) {
 		var ret *bool
 		return ret
 	}
@@ -105,7 +105,7 @@ func (o *Plan) SetFree(v *bool) {
 
 // GetId returns the Id field value
 func (o *Plan) GetId() *string {
-	if o == nil {
+	if o == nil || IsNil(o.Id) {
 		var ret *string
 		return ret
 	}
@@ -129,7 +129,7 @@ func (o *Plan) SetId(v *string) {
 
 // GetName returns the Name field value
 func (o *Plan) GetName() *string {
-	if o == nil {
+	if o == nil || IsNil(o.Name) {
 		var ret *string
 		return ret
 	}
@@ -153,7 +153,7 @@ func (o *Plan) SetName(v *string) {
 
 // GetSkuName returns the SkuName field value
 func (o *Plan) GetSkuName() *string {
-	if o == nil {
+	if o == nil || IsNil(o.SkuName) {
 		var ret *string
 		return ret
 	}
diff --git a/services/mariadb/model_raw_credentials.go b/services/mariadb/model_raw_credentials.go
index 3e69462b7..4d9a4451b 100644
--- a/services/mariadb/model_raw_credentials.go
+++ b/services/mariadb/model_raw_credentials.go
@@ -45,7 +45,7 @@ func NewRawCredentialsWithDefaults() *RawCredentials {
 
 // GetCredentials returns the Credentials field value
 func (o *RawCredentials) GetCredentials() *Credentials {
-	if o == nil {
+	if o == nil || IsNil(o.Credentials) {
 		var ret *Credentials
 		return ret
 	}
diff --git a/services/mariadb/model_restore.go b/services/mariadb/model_restore.go
index a75d7973b..a6add4dd3 100644
--- a/services/mariadb/model_restore.go
+++ b/services/mariadb/model_restore.go
@@ -55,7 +55,7 @@ func NewRestoreWithDefaults() *Restore {
 
 // GetBackupId returns the BackupId field value
 func (o *Restore) GetBackupId() *int64 {
-	if o == nil {
+	if o == nil || IsNil(o.BackupId) {
 		var ret *int64
 		return ret
 	}
@@ -79,7 +79,7 @@ func (o *Restore) SetBackupId(v *int64) {
 
 // GetFinishedAt returns the FinishedAt field value
 func (o *Restore) GetFinishedAt() *string {
-	if o == nil {
+	if o == nil || IsNil(o.FinishedAt) {
 		var ret *string
 		return ret
 	}
@@ -103,7 +103,7 @@ func (o *Restore) SetFinishedAt(v *string) {
 
 // GetId returns the Id field value
 func (o *Restore) GetId() *int64 {
-	if o == nil {
+	if o == nil || IsNil(o.Id) {
 		var ret *int64
 		return ret
 	}
@@ -127,7 +127,7 @@ func (o *Restore) SetId(v *int64) {
 
 // GetStatus returns the Status field value
 func (o *Restore) GetStatus() *string {
-	if o == nil {
+	if o == nil || IsNil(o.Status) {
 		var ret *string
 		return ret
 	}
diff --git a/services/mariadb/model_schema.go b/services/mariadb/model_schema.go
index dd5afe945..fb4e29413 100644
--- a/services/mariadb/model_schema.go
+++ b/services/mariadb/model_schema.go
@@ -45,7 +45,7 @@ func NewSchemaWithDefaults() *Schema {
 
 // GetParameters returns the Parameters field value
 func (o *Schema) GetParameters() *map[string]interface{} {
-	if o == nil {
+	if o == nil || IsNil(o.Parameters) {
 		var ret *map[string]interface{}
 		return ret
 	}
diff --git a/services/mariadb/model_trigger_restore_response.go b/services/mariadb/model_trigger_restore_response.go
index 656359dea..fc1232481 100644
--- a/services/mariadb/model_trigger_restore_response.go
+++ b/services/mariadb/model_trigger_restore_response.go
@@ -45,7 +45,7 @@ func NewTriggerRestoreResponseWithDefaults() *TriggerRestoreResponse {
 
 // GetId returns the Id field value
 func (o *TriggerRestoreResponse) GetId() *int64 {
-	if o == nil {
+	if o == nil || IsNil(o.Id) {
 		var ret *int64
 		return ret
 	}
diff --git a/services/mariadb/model_update_backups_config_response.go b/services/mariadb/model_update_backups_config_response.go
index a520addca..c69f1ee6a 100644
--- a/services/mariadb/model_update_backups_config_response.go
+++ b/services/mariadb/model_update_backups_config_response.go
@@ -45,7 +45,7 @@ func NewUpdateBackupsConfigResponseWithDefaults() *UpdateBackupsConfigResponse {
 
 // GetMessage returns the Message field value
 func (o *UpdateBackupsConfigResponse) GetMessage() *string {
-	if o == nil {
+	if o == nil || IsNil(o.Message) {
 		var ret *string
 		return ret
 	}