islist | type | pretty name | size ? | canonical name |
lt label varname l -> +/" " if list t -> type
ls()
class(unclass(x)) -> list | other length(x) names(x)
search() "package:zzz"
objects("package:zzz") class("package::zzz")
detach("package:zzz") help("package:zzz") help("zzz::fun")