diff --git a/services/mongodbflex/model_clone_instance_payload.go b/services/mongodbflex/model_clone_instance_payload.go
index c6a2c03b4..0d6c32c56 100644
--- a/services/mongodbflex/model_clone_instance_payload.go
+++ b/services/mongodbflex/model_clone_instance_payload.go
@@ -62,7 +62,7 @@ type CloneInstancePayloadGetTimestampRetType = string
 // CloneInstancePayload struct for CloneInstancePayload
 type CloneInstancePayload struct {
 	// REQUIRED
-	InstanceId CloneInstancePayloadGetInstanceIdAttributeType `json:"instanceId"`
+	InstanceId CloneInstancePayloadGetInstanceIdAttributeType `json:"instanceId" required:"true"`
 	Timestamp  CloneInstancePayloadGetTimestampAttributeType  `json:"timestamp,omitempty"`
 }
 
diff --git a/services/mongodbflex/model_create_instance_payload.go b/services/mongodbflex/model_create_instance_payload.go
index 999ed5e8b..2a4ce056c 100644
--- a/services/mongodbflex/model_create_instance_payload.go
+++ b/services/mongodbflex/model_create_instance_payload.go
@@ -204,23 +204,23 @@ type CreateInstancePayloadGetVersionRetType = string
 // CreateInstancePayload struct for CreateInstancePayload
 type CreateInstancePayload struct {
 	// REQUIRED
-	Acl CreateInstancePayloadGetAclAttributeType `json:"acl"`
+	Acl CreateInstancePayloadGetAclAttributeType `json:"acl" required:"true"`
 	// REQUIRED
-	BackupSchedule CreateInstancePayloadGetBackupScheduleAttributeType `json:"backupSchedule"`
+	BackupSchedule CreateInstancePayloadGetBackupScheduleAttributeType `json:"backupSchedule" required:"true"`
 	// REQUIRED
-	FlavorId CreateInstancePayloadGetFlavorIdAttributeType `json:"flavorId"`
+	FlavorId CreateInstancePayloadGetFlavorIdAttributeType `json:"flavorId" required:"true"`
 	// Labels field is not certain/clear
 	Labels CreateInstancePayloadGetLabelsAttributeType `json:"labels,omitempty"`
 	// REQUIRED
-	Name CreateInstancePayloadGetNameAttributeType `json:"name"`
+	Name CreateInstancePayloadGetNameAttributeType `json:"name" required:"true"`
 	// REQUIRED
-	Options CreateInstancePayloadGetOptionsAttributeType `json:"options"`
+	Options CreateInstancePayloadGetOptionsAttributeType `json:"options" required:"true"`
 	// REQUIRED
-	Replicas CreateInstancePayloadGetReplicasAttributeType `json:"replicas"`
+	Replicas CreateInstancePayloadGetReplicasAttributeType `json:"replicas" required:"true"`
 	// REQUIRED
-	Storage CreateInstancePayloadGetStorageAttributeType `json:"storage"`
+	Storage CreateInstancePayloadGetStorageAttributeType `json:"storage" required:"true"`
 	// REQUIRED
-	Version CreateInstancePayloadGetVersionAttributeType `json:"version"`
+	Version CreateInstancePayloadGetVersionAttributeType `json:"version" required:"true"`
 }
 
 type _CreateInstancePayload CreateInstancePayload
diff --git a/services/mongodbflex/model_create_user_payload.go b/services/mongodbflex/model_create_user_payload.go
index f93b0154b..17331c753 100644
--- a/services/mongodbflex/model_create_user_payload.go
+++ b/services/mongodbflex/model_create_user_payload.go
@@ -82,9 +82,9 @@ type CreateUserPayloadGetUsernameRetType = string
 // CreateUserPayload struct for CreateUserPayload
 type CreateUserPayload struct {
 	// REQUIRED
-	Database CreateUserPayloadGetDatabaseAttributeType `json:"database"`
+	Database CreateUserPayloadGetDatabaseAttributeType `json:"database" required:"true"`
 	// REQUIRED
-	Roles    CreateUserPayloadGetRolesAttributeType    `json:"roles"`
+	Roles    CreateUserPayloadGetRolesAttributeType    `json:"roles" required:"true"`
 	Username CreateUserPayloadGetUsernameAttributeType `json:"username,omitempty"`
 }
 
diff --git a/services/mongodbflex/model_restore_instance_payload.go b/services/mongodbflex/model_restore_instance_payload.go
index 15d7d6d6c..2d72af9f4 100644
--- a/services/mongodbflex/model_restore_instance_payload.go
+++ b/services/mongodbflex/model_restore_instance_payload.go
@@ -62,9 +62,9 @@ type RestoreInstancePayloadGetInstanceIdRetType = string
 // RestoreInstancePayload struct for RestoreInstancePayload
 type RestoreInstancePayload struct {
 	// REQUIRED
-	BackupId RestoreInstancePayloadGetBackupIdAttributeType `json:"backupId"`
+	BackupId RestoreInstancePayloadGetBackupIdAttributeType `json:"backupId" required:"true"`
 	// REQUIRED
-	InstanceId RestoreInstancePayloadGetInstanceIdAttributeType `json:"instanceId"`
+	InstanceId RestoreInstancePayloadGetInstanceIdAttributeType `json:"instanceId" required:"true"`
 }
 
 type _RestoreInstancePayload RestoreInstancePayload
diff --git a/services/mongodbflex/model_update_instance_payload.go b/services/mongodbflex/model_update_instance_payload.go
index 79f58aafc..e514941e3 100644
--- a/services/mongodbflex/model_update_instance_payload.go
+++ b/services/mongodbflex/model_update_instance_payload.go
@@ -204,23 +204,23 @@ type UpdateInstancePayloadGetVersionRetType = string
 // UpdateInstancePayload struct for UpdateInstancePayload
 type UpdateInstancePayload struct {
 	// REQUIRED
-	Acl UpdateInstancePayloadGetAclAttributeType `json:"acl"`
+	Acl UpdateInstancePayloadGetAclAttributeType `json:"acl" required:"true"`
 	// REQUIRED
-	BackupSchedule UpdateInstancePayloadGetBackupScheduleAttributeType `json:"backupSchedule"`
+	BackupSchedule UpdateInstancePayloadGetBackupScheduleAttributeType `json:"backupSchedule" required:"true"`
 	// REQUIRED
-	FlavorId UpdateInstancePayloadGetFlavorIdAttributeType `json:"flavorId"`
+	FlavorId UpdateInstancePayloadGetFlavorIdAttributeType `json:"flavorId" required:"true"`
 	// Labels field is not certain/clear
 	Labels UpdateInstancePayloadGetLabelsAttributeType `json:"labels,omitempty"`
 	// REQUIRED
-	Name UpdateInstancePayloadGetNameAttributeType `json:"name"`
+	Name UpdateInstancePayloadGetNameAttributeType `json:"name" required:"true"`
 	// REQUIRED
-	Options UpdateInstancePayloadGetOptionsAttributeType `json:"options"`
+	Options UpdateInstancePayloadGetOptionsAttributeType `json:"options" required:"true"`
 	// REQUIRED
-	Replicas UpdateInstancePayloadGetReplicasAttributeType `json:"replicas"`
+	Replicas UpdateInstancePayloadGetReplicasAttributeType `json:"replicas" required:"true"`
 	// REQUIRED
-	Storage UpdateInstancePayloadGetStorageAttributeType `json:"storage"`
+	Storage UpdateInstancePayloadGetStorageAttributeType `json:"storage" required:"true"`
 	// REQUIRED
-	Version UpdateInstancePayloadGetVersionAttributeType `json:"version"`
+	Version UpdateInstancePayloadGetVersionAttributeType `json:"version" required:"true"`
 }
 
 type _UpdateInstancePayload UpdateInstancePayload
diff --git a/services/mongodbflex/model_update_user_payload.go b/services/mongodbflex/model_update_user_payload.go
index 7ec9f866e..3542c6865 100644
--- a/services/mongodbflex/model_update_user_payload.go
+++ b/services/mongodbflex/model_update_user_payload.go
@@ -61,9 +61,9 @@ func setUpdateUserPayloadGetRolesAttributeType(arg *UpdateUserPayloadGetRolesAtt
 // UpdateUserPayload struct for UpdateUserPayload
 type UpdateUserPayload struct {
 	// REQUIRED
-	Database UpdateUserPayloadGetDatabaseAttributeType `json:"database"`
+	Database UpdateUserPayloadGetDatabaseAttributeType `json:"database" required:"true"`
 	// REQUIRED
-	Roles UpdateUserPayloadGetRolesAttributeType `json:"roles"`
+	Roles UpdateUserPayloadGetRolesAttributeType `json:"roles" required:"true"`
 }
 
 type _UpdateUserPayload UpdateUserPayload