iops per Qtree in cdot i need the api or snmp iods to get iops per qteee in Cdot i

I need to the api call to get iops per qtree in the head and or cluster

I have the call for 7-mode netapp_perf_qtree_nfs_ops

I need it for cdot

trying to use 

perf-object-get-instances
but i dont seem to userstand how to get the data