code: def valid_paths(self, *args):
          
          for i, path in enumerate(args, start=0):
              cp = list(args)
              current = cp.pop(i)
              if current in cp:
                  raise SettingsInvalidError("Multiple occurences finded for "
                                             "path: {}".format(current))
  
          return True
docs: Validate that given paths are not the same.
  
          Args:
              (string): Path to validate.
  
          Raises:
              boussole.exceptions.SettingsInvalidError: If there is more than one
                  occurence of the same path.
  
          Returns:
              bool: ``True`` if paths are validated.