How to implement Arista fan sensor status check

I think this is a little bit more complicated.
You need to fetch also the OID_END (100601111, 100602111 and so on). This number is needed to join then booth lists you fetch.
Good example is the https://github.com/tribe29/checkmk/blob/master/checks/cmciii check - info section starting at line 209
Your parse function don’t need to be as complex as the cmciii check but you need to join booth lists to one single list or dictionary (dictionary would be preferred).