SDA - L3 VN - New 2.3.7.X API Call

[WouterDePrins]

From 2.3.7.X, the API's for creating L3 VN's in SDA is different: '/dna/intent/api/v1/sda/layer3VirtualNetworks'.
Could this be implemented?

With the current API call, the below error message appears.

catalystcenter_fabric_virtual_network.vn: Creating...
╷
│ Error: Client Error
│
│   with catalystcenter_fabric_virtual_network.vn,
│   on query.tf line 1, in resource "catalystcenter_fabric_virtual_network" "vn":
│    1: resource "catalystcenter_fabric_virtual_network" "vn" {
│
│ Failed to configure object (POST), got error: HTTP Request failed: StatusCode 400, {
│   "status" : "failed",
│   "description" : "could not find internal dnac hosting service for = fusion#spf-service-manager-service",
│   "taskId" : null,
│   "taskStatusUrl" : "/dna/intent/api/v1/task/null",
│   "executionStatusUrl" : "/dna/intent/api/v1/dnacaap/management/execution-status/587d0e4d-d34d-4821-9318-8797c24938ce",
│   "executionId" : "587d0e4d-d34d-4821-9318-8797c24938ce"
│ }