Different Get requests

I want to know what is different between these two get request in icontrol rest. mgmt/tm/cloud/ltm/virtual-servers...& mgmt/tm/ltm/virtual-servers i am able to see it gives little different information. I have one lab f5 device which is runnning on 11.5.1 and it only works with Could version of get request. why is so that and how to utilize this in Python SDK. please help soon i have projects to deliver to automate F5.