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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 _operator_generator(index, conj):
 """ Internal method to generate the appropriate operator """

        pterm = PauliTerm('I', 0, 1.0)
        Zstring = PauliTerm('I', 0, 1.0)
        for j in range(index):
            Zstring = Zstring*PauliTerm('Z', j, 1.0)

        pterm1 = Zstring*PauliTerm('X', index, 0.5)
        scalar = 0.5 * conj * 1.0j
        pterm2 = Zstring*PauliTerm('Y', index, scalar)
        pterm = pterm * (pterm1 + pterm2)

        pterm = pterm.simplify()
        return pterm