If i know the system configuration, I can set set variables from the facts 
using:

- set_fact: drive0start={{ ansible_devices.sda.partitions.sda1.start }}
  register: drive0start

- set_fact: drive0sectors={{ ansible_devices.sda.partitions.sda1.sectors }}
  register: drive0sectors

- debug: msg="{{ drive0start }} {{drive0sectors }}"

But what if all the systems are different, and I do not know if the drive 
configurations will be sda, sdb, sdc, nvem0, nvme2, etc. and I do not know 
how many partitions (if any) will be on each drive?  Is there a way to auto 
detect this, and then put each start and sector value into variables to be 
used later?

Basically loop through ansible_devices, and then loop through those drives 
and collect the partition start and sectors values from each, dynamically.


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