def R2g():
    '\n\n    '
    A = ((Uedg(a, (t1 + t2)) * Ugde(b, ((t1 + t2) + t3))) * Uedg(b, t1))
    return evaluate_cumulant(A, positive_times=(t1, t2, t3), leading_index=a, arrays=['gg'])
def R2g():
    '\n\n    '
    A = ((Uedg(a, (t1 + t2)) * Ugde(b, ((t1 + t2) + t3))) * Uedg(b, t1))
    return evaluate_cumulant(A, positive_times=(t1, t2, t3), leading_index=a, arrays=['gg'])