Heads Up :
The post you are writing will appear in a public forum. Please ensure all content is appropriate for public consumption. Review the employee guidelines for the community here.
I have written a Python client that accesses the ISE ERS API. The client was originally written against an ISE v2.0 server which was only available as XML. ISE v2.0 did not have the ERS-Media-Type header and the resource version you wanted to receive...