github.com/gotd/td/tg.ChannelAdminLogEventActionPinTopic.SetPrevTopic (method)

one use

	github.com/gotd/td/tg (current package)
		tl_channel_admin_log_event_action_gen.go#L6535: func (c *ChannelAdminLogEventActionPinTopic) SetPrevTopic(value ForumTopicClass) {