flagTypes=flag.String("type","","comma-separated list of types; required")
flagBuildTags=flag.String("tags","","compiler build tags to apply")
flagCloneFunc=flag.Bool("clonefunc",false,"add a top-level Clone func")
flagCloneOnlyTypes=flag.String("clone-only-type","","comma-separated list of types (a subset of --type) that should only generate a go:generate clone line and not actual views")