Need a eaxmple of using the bitmask in snmp notification filter

Need a eaxmple of using the bitmask in snmp notification filter. Please help

For SNMP specific questions, it is best to raise a RT ticket with our support team. The User Forum is mainly focused on the NETCONF API.

Or are you refering to ConfD notifications such as the SNMP agent audit event?
If so, see ./examples.confd/snmpa/4-snmp-audit/snmpaudit.c