using web::WebRes** As thrown by BedSheetconstclass BedSheetErr : Err {new make(Str msg := "", Err? cause := null) : super(msg, cause){}}** Throw at any point to return / handle the http status.** ** By default the Err msg is sent to the client. ** ** Note there's a fine line between helping the developer and helping a hacker, so be careful what ** msgs you construct your Err with!constclass HttpStatusErr : Err {** The HTTP (error) status code for this error.** ** @see `web::WebRes.statusMsg`const Int statusCodenew make(Int statusCode, Str msg := WebRes.statusMsg[statusCode], Err? cause := null) : super(msg, cause){this.statusCode = statusCode}}** Throw by the routing mechanism on uri -> route mismatch. internalconstclass RouteNotFoundErr : HttpStatusErr {new make(Str msg := "", Err? cause := null) : super(404, msg, cause){}}