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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 energy(self) -> ErrorValue: """X-ray energy"""

        return (ErrorValue(*(scipy.constants.physical_constants['speed of light in vacuum'][0::2])) *
                ErrorValue(*(scipy.constants.physical_constants['Planck constant in eV s'][0::2])) /
                scipy.constants.nano /
                self.wavelength)