github.com/gotd/td/tg.ChannelAdminLogEventActionPinTopic.GetPrevTopic (method, view implemented interface methods)

one use

	github.com/gotd/td/tg (current package)
		tl_channel_admin_log_event_action_gen.go#L6542: func (c *ChannelAdminLogEventActionPinTopic) GetPrevTopic() (value ForumTopicClass, ok bool) {