Where can I find the XSD of the created BPMN?

I need to import the XML created by the modeler to another tool. The other tool asks for the XSD schema, unfortunately I cannot find it as already pointed by: https://forum.camunda.io/t/bpmn-xsd-missing/22505/3

Any help?

Cheers,
Matteo


Update

For now I have created my own XSD from the XML using a tool from .NET: https://docs.microsoft.com/en-us/dotnet/standard/serialization/xml-schema-definition-tool-xsd-exe

Which other tool are you trying to import the model into?

I am trying to import it in Mendix: Mendix Import XML