source

ets_f

 ets_f (y, m, model='ZZZ', damped=None, alpha=None, beta=None, gamma=None,
        phi=None, additive_only=None, blambda=None, biasadj=None,
        lower=None, upper=None, opt_crit='lik', nmse=3, bounds='both',
        ic='aicc', restrict=True, allow_multiplicative_trend=False,
        use_initial_values=False, maxit=2000)