server event in python-openstackclient

[Nihar Panda]

This bug tracker is for errors with the documentation, use the following as a template and remove or add fields as you see fit. Convert [ ] into [x] to check boxes:

- [ ] This doc is inaccurate in this way: How to get the similar output using OpenStack python SDK
- [ ] This is a doc addition request.
- [ ] I have a fix to the document that I can paste below including example: input and output.

If you have a troubleshooting or support issue, use the following resources:

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Release: 3.16.4.dev6 on 2020-08-19 16:09
SHA: 13e7d43b9777dd0719df5fb89ec7946ea761f5cf
Source: https://git.openstack.org/cgit/openstack/python-openstackclient/tree/doc/source/cli/command-objects/server-event.rst
URL: https://docs.openstack.org/python-openstackclient/rocky/cli/command-objects/server-event.html