Unassign workspace from capacity and switch it to Pro via Power BI REST API

[TomPiv]

I need to unassign a Power BI embedded capacity from a workspace and change its license mode to "Pro" via API. I am able to unassign the capacity by using an empty GUID (00000000-0000-0000-0000-000000000000) as it is described in Capacities - Groups AssignToCapacity - REST API (Power BI Power BI REST APIs) | Microsoft Learn

However this doesn't change the workspace's license mode to Pro, it just unassigns the embedded capacity.

Is there any way to assign the Pro license mode via API?

Thanks