docs: def setup_command(self, encoding, options, personal_dict, file_name=None):
          """Setup command."""
  
          cmd = [
              self.binary,
              '-l'
          ]
  
          if encoding:
              cmd.extend(['-i', encoding])
  
          if personal_dict:
              cmd.extend(['-p', personal_dict])
  
          allowed = {
              'check-apostrophe', 'check-url',
              'd', 'H', 'i', 'n', 'O', 'r', 't', 'X'
          }
  
          for k, v in options.items():
              if k in allowed:
                  key = ('-%s' if len(k) == 1 else '--%s') % k
                  if isinstance(v, bool) and v is True:
                      cmd.append(key)
                  elif isinstance(v, str):
                      cmd.extend([key, v])
                  elif isinstance(v, int):
                      cmd.extend([key, str(v)])
                  elif isinstance(v, list):
                      for value in v:
                          cmd.extend([key, str(value)])
  
          if file_name is not None:
              cmd.append(file_name)
  
          return cmd