code: public void printHelp(Command command) {
          if (command.getDescriptor().getUsage() != null) {
              printUsage(command.getDescriptor().getUsage());
          } else {
              printUsage(command);
          }
          int leftWidth = printOptions(command.getOptions());
          printArguments(command.getArgumentsList(), leftWidth);
      }
docs: Print the help with the given Command object.
  
  @param command the Command instance