github.com/gotd/td/tg.UploadCDNFileClassArray.PopFirst (method)

one use

	github.com/gotd/td/tg (current package)
		tl_upload_cdn_file_slices_gen.go#L87: func (s *UploadCDNFileClassArray) PopFirst() (v UploadCDNFileClass, ok bool) {