Direct (polars.Polars.Env.Info.Fields.Direct)

val iter : 
  'a t ->
  env_var:(('a t, string) Fieldslib.Field.t -> 'a t -> string -> unit) ->
  of_string:
    (('a t, string -> 'a) Fieldslib.Field.t -> 'a t -> (string -> 'a) -> unit) ->
  to_string:
    (('a t, 'a -> string) Fieldslib.Field.t -> 'a t -> ('a -> string) -> unit) ->
  default:(('a t, 'a) Fieldslib.Field.t -> 'a t -> 'a -> unit) ->
  unit

val fold : 
  'a t ->
  init:'acc__0 ->
  env_var:
    ('acc__0 -> ('a t, string) Fieldslib.Field.t -> 'a t -> string -> 'acc__1) ->
  of_string:
    ('acc__1 ->
      ('a t, string -> 'a) Fieldslib.Field.t ->
      'a t ->
      (string -> 'a) ->
      'acc__2) ->
  to_string:
    ('acc__2 ->
      ('a t, 'a -> string) Fieldslib.Field.t ->
      'a t ->
      ('a -> string) ->
      'acc__3) ->
  default:('acc__3 -> ('a t, 'a) Fieldslib.Field.t -> 'a t -> 'a -> 'acc__4) ->
  'acc__4

val for_all : 
  'a t ->
  env_var:(('a t, string) Fieldslib.Field.t -> 'a t -> string -> bool) ->
  of_string:
    (('a t, string -> 'a) Fieldslib.Field.t -> 'a t -> (string -> 'a) -> bool) ->
  to_string:
    (('a t, 'a -> string) Fieldslib.Field.t -> 'a t -> ('a -> string) -> bool) ->
  default:(('a t, 'a) Fieldslib.Field.t -> 'a t -> 'a -> bool) ->
  bool

val exists : 
  'a t ->
  env_var:(('a t, string) Fieldslib.Field.t -> 'a t -> string -> bool) ->
  of_string:
    (('a t, string -> 'a) Fieldslib.Field.t -> 'a t -> (string -> 'a) -> bool) ->
  to_string:
    (('a t, 'a -> string) Fieldslib.Field.t -> 'a t -> ('a -> string) -> bool) ->
  default:(('a t, 'a) Fieldslib.Field.t -> 'a t -> 'a -> bool) ->
  bool

val to_list : 
  'a t ->
  env_var:(('a t, string) Fieldslib.Field.t -> 'a t -> string -> 'elem__) ->
  of_string:
    (('a t, string -> 'a) Fieldslib.Field.t ->
      'a t ->
      (string -> 'a) ->
      'elem__) ->
  to_string:
    (('a t, 'a -> string) Fieldslib.Field.t ->
      'a t ->
      ('a -> string) ->
      'elem__) ->
  default:(('a t, 'a) Fieldslib.Field.t -> 'a t -> 'a -> 'elem__) ->
  'elem__ list

val map : 
  'a t ->
  env_var:(('a t, string) Fieldslib.Field.t -> 'a t -> string -> string) ->
  of_string:
    (('a t, string -> 'a) Fieldslib.Field.t ->
      'a t ->
      (string -> 'a) ->
      string ->
      'a) ->
  to_string:
    (('a t, 'a -> string) Fieldslib.Field.t ->
      'a t ->
      ('a -> string) ->
      'a ->
      string) ->
  default:(('a t, 'a) Fieldslib.Field.t -> 'a t -> 'a -> 'a) ->
  'a t

val set_all_mutable_fields : 'a t -> unit