val login_name : unit ‑> string(describe-function 'user-login-name)(Info-goto-node "(elisp) User Identification")
val real_login_name : unit ‑> string(describe-function 'user-real-login-name)(Info-goto-node "(elisp) User Identification")
val system_user_names : unit ‑> string list(describe-function 'system-users)(Info-goto-node "(elisp) User Identification")
val system_group_names : unit ‑> string list(describe-function 'system-groups)(Info-goto-node "(elisp) User Identification")
val full_name : unit ‑> string(describe-function 'user-full-name)(Info-goto-node "(elisp) User Identification")
val real_uid : unit ‑> int(describe-function 'user-real-uid)(Info-goto-node "(elisp) User Identification")