module Attr_helper: sig .. end
Helpers for attributes
type 
| | | Multiple_attributes of string | 
| | | No_payload_expected of string | 
val get_no_payload_attribute : string list -> Parsetree.attributes -> string Asttypes.loc option
The 
string list argument of the following functions is a list of
    alternative names for the attribute we are looking for. For instance:
    
      ["foo"; "ocaml.foo"]
    
val has_no_payload_attribute : string list -> Parsetree.attributes -> bool
exception Error of Location.t * error
val report_error : Format.formatter -> error -> unit