Expert (ppxlib.Ppxlib.Extension.Expert)

type ('context, 'payload) t

val declare : 
  string ->
  'context Context.t ->
  (Parsetree.payload, 'a, 'b) Ppxlib__.Ast_pattern0.t ->
  'a ->
  ('context, 'b) t

val declare_with_path_arg : 
  string ->
  'context Context.t ->
  (Parsetree.payload, 'a, 'b) Ppxlib__.Ast_pattern0.t ->
  (arg:Astlib.Longident.t Astlib.Location.loc option -> 'a) ->
  ('context, 'b) t

val convert_res : 
  ('b, 'a) t list ->
  loc:Astlib.Location.t ->
  (string Astlib.Location.loc * Parsetree.payload) ->
  ('a option, Ppxlib__.Location.Error.t Stdppx.NonEmptyList.t) result

val convert : 
  ('b, 'a) t list ->
  loc:Astlib.Location.t ->
  (string Astlib.Location.loc * Parsetree.payload) ->
  'a option