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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 Run(self, unused_args):
 """Estimate the install date of this system."""

    # Don't use winreg.KEY_WOW64_64KEY since it breaks on Windows 2000
    subkey = winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE,
                            "Software\\Microsoft\\Windows NT\\CurrentVersion",
                            0, winreg.KEY_READ)
    install_date = winreg.QueryValueEx(subkey, "InstallDate")
    self.SendReply(rdfvalue.RDFDatetime.FromSecondsSinceEpoch(install_date[0]))