question: tries to find appropriate help for argument . it can be argument help for positional argument or option help for option argument . concode_field_sep PlaceHolder placeHolder concode_field_sep Option findOptionForOptionArgument concode_elem_sep Argument findRealArgument concode_elem_sep ValidationResult getValidationResult concode_elem_sep boolean isLong concode_elem_sep Option findRealOption concode_elem_sep String getOptionName
target: Help function ( @ NotNull final CommandLineArgument arg0 ) { final Option loc0 = arg0 . findOptionForOptionArgument ( ) ; if ( loc0 != null ) { return loc0 . getHelp ( ) ; } final Argument loc1 = arg0 . findRealArgument ( ) ; return ( loc1 != null ? loc1 . getHelp ( ) : null ) ; }