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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def Open(self, path, ascii_codepage='cp1252'):
 """Opens the Windows Registry file specified by the path. Args: path (str):
 path of the Windows Registry file. ascii_codepage (Optional[str]):
 ASCII string codepage. Returns: WinRegistryFile: Windows Registry file or None. """

    path_specification = self._path_resolver.ResolvePath(path)
    if path_specification is None:
      return None

    return self._OpenPathSpec(path_specification)