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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 getspectrum(self, index):
 """ Reads the spectrum at specified index from the .ibd file. :param index: Index of the desired spectrum in the .imzML file Output: mz_array: numpy.ndarray Sequence of m/z values representing the horizontal axis of the desired mass spectrum intensity_array: numpy.ndarray Sequence of intensity values corresponding to mz_array """

        mz_bytes, intensity_bytes = self.get_spectrum_as_string(index)
        mz_array = np.frombuffer(mz_bytes, dtype=self.mzPrecision)
        intensity_array = np.frombuffer(intensity_bytes, dtype=self.intensityPrecision)
        return mz_array, intensity_array