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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 SetKeyPathPrefix(self, key_path_prefix):
 """Sets the Window Registry key path prefix. Args: key_path_prefix (str):
 Windows Registry 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()