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

one use

	github.com/gotd/td/tg (current package)
		tl_help_terms_of_service_update_slices_gen.go#L220: func (s HelpTermsOfServiceUpdateEmptyArray) Retain(keep func(x HelpTermsOfServiceUpdateEmpty) bool) HelpTermsOfServiceUpdateEmptyArray {