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

one use

	github.com/gotd/td/tg (current package)
		tl_input_file_location_slices_gen.go#L1160: func (s InputPeerPhotoFileLocationLegacyArray) Retain(keep func(x InputPeerPhotoFileLocationLegacy) bool) InputPeerPhotoFileLocationLegacyArray {