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

one use

	github.com/gotd/td/tg (current package)
		tl_input_file_location_slices_gen.go#L804: func (s InputPhotoLegacyFileLocationArray) Retain(keep func(x InputPhotoLegacyFileLocation) bool) InputPhotoLegacyFileLocationArray {