Edit the nut.conf:

sudo vi /etc/nut/nut.conf

Add the following lines to the end:

DRIVERS="snmp-ups"

Edit the ups.conf:

sudo vi /etc/nut/ups.conf

Add the following lines to the end:

[snmp]
  driver = snmp-ups
  port = <UPS_IP_ADDRESS>
  community = <COMMUNITY>
  snmp_version = v2c
  pollfreq = 15
  desc = "BamBu Printer UPS"

Replace <UPS_IP_ADDRESS> with the IP address of your UPS device / Raspberry Pi

Replace <COMMUNITY> with the Community you are using

Not sure if this is needed yet:

sudo vi /etc/snmp/snmpd.conf

Add extend line to the ens of the file:

extend BamBu /usr/bin/nut-upsmon