# This file is not meant for public use and will be removed in SciPy v2.0.0.
# Use the `scipy.signal` namespace for importing the functions
# included below.

from scipy._lib.deprecation import _sub_module_deprecation

__all__ = [  # noqa: F822
    'findfreqs', 'freqs', 'freqz', 'tf2zpk', 'zpk2tf', 'normalize',
    'lp2lp', 'lp2hp', 'lp2bp', 'lp2bs', 'bilinear', 'iirdesign',
    'iirfilter', 'butter', 'cheby1', 'cheby2', 'ellip', 'bessel',
    'band_stop_obj', 'buttord', 'cheb1ord', 'cheb2ord', 'ellipord',
    'buttap', 'cheb1ap', 'cheb2ap', 'ellipap', 'besselap',
    'BadCoefficients', 'freqs_zpk', 'freqz_zpk',
    'tf2sos', 'sos2tf', 'zpk2sos', 'sos2zpk', 'group_delay',
    'sosfreqz', 'freqz_sos', 'iirnotch', 'iirpeak', 'bilinear_zpk',
    'lp2lp_zpk', 'lp2hp_zpk', 'lp2bp_zpk', 'lp2bs_zpk',
    'gammatone', 'iircomb',
]


def __dir__():
    return __all__


def __getattr__(name):
    return _sub_module_deprecation(sub_package="signal", module="filter_design",
                                   private_modules=["_filter_design"], all=__all__,
                                   attribute=name)