How to get all variables from XML-RPC VM schemas?

There are some API usage examples in and XML-RPC schema.
I’m trying to use Schema for Virtual Machine.
Method OpenNebula::VirtualMachinePool.monitoring([' /* ']) returns values of and subnodes.
How can I get other XML-RPC nodes with API, for example HISTORY_RECORDS/HISTORY/HID?
Thank you for answer and explanation

Hi @mykytkad ,

Find here a example about how get VM history records (in this case the last one) using the Ruby API.