419         U: Display,  in argument_conflict()
450     pub fn empty_value<U>(arg: &AnyArg, usage: U, color: ColorWhen) -> Self  in empty_value()
484         G: AsRef<str> + Display,  in invalid_value()
485         U: Display,  in invalid_value()
530         D: AsRef<str> + Display,  in invalid_subcommand()
531         N: Display,  in invalid_subcommand()
532         U: Display,  in invalid_subcommand()
565         N: Display,  in unrecognized_subcommand()
590     pub fn missing_required_argument<R, U>(required: R, usage: U, color: ColorWhen) -> Self  in missing_required_argument()
593         U: Display,  in missing_required_argument()
617         N: AsRef<str> + Display,  in missing_subcommand()
618         U: Display,  in missing_subcommand()
640     pub fn invalid_utf8<U>(usage: U, color: ColorWhen) -> Self  in invalid_utf8()
666         U: Display,  in too_many_values()
699         U: Display,  in too_few_values()
762         S: Display,  in wrong_number_of_values()
763         U: Display,  in wrong_number_of_values()
789     pub fn unexpected_multiple_usage<U>(arg: &AnyArg, usage: U, color: ColorWhen) -> Self  in unexpected_multiple_usage()
817         U: Display,  in unknown_argument()