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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 seebeck_spb(eta,Lambda=0.5):
 """ Seebeck analytic formula in the single parabolic model """

    from fdint import fdk
    
    return constants.k/constants.e * ((2. + Lambda) * fdk( 1.+ Lambda, eta)/ 
                 ((1.+Lambda)*fdk(Lambda, eta))- eta) * 1e+6