def METHOD_NAME(q2, par):
    deltaC7_dict = {}
    for amp in ['perp0', 'para0', 'perp1', 'para1']:
        deltaC7_dict[amp]  = ( par['Lambdab->Lambda deltaC7 a_' + amp + ' Re']
                             + par['Lambdab->Lambda deltaC7 b_' + amp + ' Re'] *q2
                             + 1j*par['Lambdab->Lambda deltaC7 a_' + amp + ' Im']
                             + 1j*par['Lambdab->Lambda deltaC7 b_' + amp + ' Im'] *q2)
    return transversity_amps_deltaC7(q2, deltaC7_dict, par)