github.com/gotd/td/tg.ChannelAdminLogEventActionChangeWallpaperArray.Retain (method)

one use

	github.com/gotd/td/tg (current package)
		tl_channel_admin_log_event_action_slices_gen.go#L4250: func (s ChannelAdminLogEventActionChangeWallpaperArray) Retain(keep func(x ChannelAdminLogEventActionChangeWallpaper) bool) ChannelAdminLogEventActionChangeWallpaperArray {