Make.X
type t
val hg : ?env:string array -> t -> cwd:Volgo_stdlib.Absolute_path.t -> args:string list -> f:(Volgo__.Hg.Output.t -> ('a, Pplumbing_err.Err.t) Volgo_stdlib.Result.t) -> ('a, Pplumbing_err.Err.t) Volgo_stdlib.Result.t