How use opc ua events

General
1

hi,
i want to generate events using opcua, but i did not find any example.
could you please explain how to do by showing an example.

thanks a lot

2

Have you tried Google?

2nd link looks like an example.

3

yes, i already tried to find an example of how to create events using opcua but unlike i did not find any think. that's why i post my question.
thank you