@classmethod
    def _get_param_names(cls):
        # fetch the constructor or the original constructor before
        # deprecation wrapping if any
        init = getattr(cls.__init__, 'deprecated_original', cls.__init__)
        if init is object.__init__:
            # No explicit constructor to introspect
            return []

        # introspect the constructor arguments to find the model parameters
        # to represent
        args, varargs = _get_args(init, varargs=True)
        if varargs is not None:
            raise RuntimeError("scikit-learn estimators should always "
                               "specify their parameters in the signature"
                               " of their __init__ (no varargs)."
                               " %s doesn't follow this convention."
                               % (cls, ))
        # Remove 'self'
        # XXX: This is going to fail if the init is a staticmethod, but
        # who would do this?
        args.pop(0)
        args.sort()
        return args
Get parameter names for the estimator
dataset/ETHPy150Open mne-tools/mne-python/mne/decoding/base.py/BaseEstimator._get_param_names