User group [用户组]
This class is designed to work with user groups.
Object references:
Available methods:
[usergroup.create](https://www.zabbix.com/documentation/4.0/zh/manual/api/reference/usergroup/create "manual:api:reference:usergroup:create")
- creating new user groups[usergroup.delete](https://www.zabbix.com/documentation/4.0/zh/manual/api/reference/usergroup/delete "manual:api:reference:usergroup:delete")
- deleting user groups[usergroup.get](https://www.zabbix.com/documentation/4.0/zh/manual/api/reference/usergroup/get "manual:api:reference:usergroup:get")
- retrieving user groups[usergroup.update](https://www.zabbix.com/documentation/4.0/zh/manual/api/reference/usergroup/update "manual:api:reference:usergroup:update")
- updating user groups