code: def SetKeyPathPrefix(self, key_path_prefix):
      
      self._key_path_prefix = key_path_prefix
      self._key_path_prefix_length = len(key_path_prefix)
      self._key_path_prefix_upper = key_path_prefix.upper()
docs: Sets the Window Registry key path prefix.
  
      Args:
        key_path_prefix (str): Windows Registry key path prefix.