
let interface buf =
    (Parse.interface buf)
    |> Migrate_parsetree.Migrate_412_413.copy_signature 
    |> Migrate_parsetree.Migrate_413_414.copy_signature 

let implementation buf =
    (Parse.implementation buf)
    |> Migrate_parsetree.Migrate_412_413.copy_structure
    |> Migrate_parsetree.Migrate_413_414.copy_structure

let expression buf =
    (Parse.expression buf)
    |> Migrate_parsetree.Migrate_412_413.copy_expression
    |> Migrate_parsetree.Migrate_413_414.copy_expression
