Ast_config (melange.Ast

val add_structure : 
  string ->
  (Melange_compiler_libs.Parsetree.expression option -> unit) ->
  unit

val add_signature : 
  string ->
  (Melange_compiler_libs.Parsetree.expression option -> unit) ->
  unit

val iter_on_bs_config_stru : Melange_compiler_libs.Parsetree.structure -> unit

val iter_on_bs_config_sigi : Melange_compiler_libs.Parsetree.signature -> unit