code: def run(self, args):
          
  
          self.args = self.parse_and_process_args(args)
  
          if self.args.version:
              print(__version__)
              return 0
              
          if self.args.rulefile:
              for filename in self.args.rulefile:
                  self._load_rule_file(filename)
  
          if self.args.list:
              self.list_rules()
              return 0
          
          if self.args.describe:
              self._describe_rules(self.args.args)
              return 0
  
          self.counts = { ERROR: 0, WARNING: 0, "other": 0}
              
          for filename in self.args.args:
              if not (os.path.exists(filename)):
                  sys.stderr.write("rflint: %s: No such file or directory\n" % filename)
                  continue
              if os.path.isdir(filename):
                  self._process_folder(filename)
              else:
                  self._process_file(filename)
  
          if self.counts[ERROR] > 0:
              return self.counts[ERROR] if self.counts[ERROR] < 254 else 255
  
          return 0
docs: Parse command line arguments, and run rflint