(Info-goto-node "(elisp)System Environment")
val getenv : var:string ‑> string option
(describe-function 'getenv)
(Info-goto-node "(elisp)System Environment")
val setenv : var:string ‑> value:string option ‑> unit
(describe-function 'setenv)
(Info-goto-node "(elisp)System Environment")
val process_environment : string list Var.t
(describe-variable 'process-environment)
(Info-goto-node "(elisp)System Environment")
module Var_and_value : sig ... end
val setenv_temporarily : Var_and_value.t list ‑> f:(unit ‑> 'a) ‑> 'a