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

one use

	github.com/gotd/td/tg (current package)
		tl_upload_cdn_file_slices_gen.go#L165: func (s UploadCDNFileReuploadNeededArray) Retain(keep func(x UploadCDNFileReuploadNeeded) bool) UploadCDNFileReuploadNeededArray {