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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 RegistryKeyFromClient(args):
 """This function expands paths from the args and returns registry keys. Args: args: An `rdf_file_finder.FileFinderArgs` object. Yields: `rdf_client_fs.StatEntry` instances. """

  for path in _GetExpandedPaths(args):
    pathspec = rdf_paths.PathSpec(
        path=path, pathtype=rdf_paths.PathSpec.PathType.REGISTRY)
    with vfs.VFSOpen(pathspec) as file_obj:
      yield file_obj.Stat()