MGR (eio.Eio.Process.Pi.MGR)

type tag

type t

val environment : t -> Env.t

val getenv_opt : t -> string -> string option

val pipe : 
  t ->
  sw:Switch.t ->
  [ Flow.source_ty | Resource.close_ty ] Std.r
  * [ Flow.sink_ty | Resource.close_ty ] Std.r

val spawn : 
  t ->
  sw:Switch.t ->
  ?cwd:Fs.dir_ty Path.t ->
  ?stdin:Flow.source_ty Std.r ->
  ?stdout:Flow.sink_ty Std.r ->
  ?stderr:Flow.sink_ty Std.r ->
  ?env:Env.t ->
  ?executable:string ->
  string list ->
  tag ty Std.r