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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 spher_harms(l, m, inclination):
 """Return spherical harmonic polarizations """


    # FIXME: we are using spin -2 weighted spherical harmonics for now,
    # when possible switch to spheroidal harmonics.
    Y_lm = lal.SpinWeightedSphericalHarmonic(inclination, 0., -2, l, m).real
    Y_lminusm = lal.SpinWeightedSphericalHarmonic(inclination, 0., -2, l, -m).real
    Y_plus = Y_lm + (-1)**l * Y_lminusm
    Y_cross = Y_lm - (-1)**l * Y_lminusm

    return Y_plus, Y_cross