# Module Builtin_attributes

    module Builtin_attributes: sig .. end

    val check_deprecated : Location.t -> Parsetree.attributes -> string -> unit

    val deprecated_of_attrs : Parsetree.attributes -> string option

    val deprecated_of_sig : Parsetree.signature -> string option

    val deprecated_of_str : Parsetree.structure -> string option

    val check_deprecated_mutable : Location.t -> Parsetree.attributes -> string -> unit

    val error_of_extension : Parsetree.extension -> Location.error

    val warning_enter_scope : unit -> unit

    val warning_leave_scope : unit -> unit

    val warning_attribute : Parsetree.attributes -> unit

    val with_warning_attribute : Parsetree.attributes -> (unit -> 'a) -> 'a

    val emit_external_warnings : Ast_iterator.iterator

    val warn_on_literal_pattern : Parsetree.attributes -> bool

    val explicit_arity : Parsetree.attributes -> bool