After a maintenance window, you must confirm that a scripted BGP change on an IOS-XE router did not alter interface counters or routing state unexpectedly. You captured a pyATS testbed snapshot before the change using 'pyats learn' and stored it. You now want a fast CLI-driven way to compare the pre-change and post-change operational state and produce a report of exactly what changed, without writing a Python AEtest script. Which pyATS CLI approach accomplishes this?