code: def GetKeyByPath(self, key_path):
      
      key_path_upper = key_path.upper()
      if key_path_upper.startswith(self._key_path_prefix_upper):
        relative_key_path = key_path[self._key_path_prefix_length:]
      elif key_path.startswith(definitions.KEY_PATH_SEPARATOR):
        relative_key_path = key_path
        key_path = ''.join([self._key_path_prefix, key_path])
      else:
        return None
  
      try:
        regf_key = self._regf_file.get_key_by_path(relative_key_path)
      except IOError:
        regf_key = None
      if not regf_key:
        return None
  
      return REGFWinRegistryKey(regf_key, key_path=key_path)
docs: Retrieves the key for a specific path.
  
      Args:
        key_path (str): Windows Registry key path.
  
      Returns:
        WinRegistryKey: Registry key or None if not available.