'Parameter default value'

@property
def default(self):

    if ((self._model is None) or (self._default is None) or (len(self._model) == 1)):
        return self._default
    n_models = len(self._model)
    model_set_axis = self._model._model_set_axis
    default = self._default
    new_shape = (np.shape(default) + ((1,) * ((model_set_axis + 1) - np.ndim(default))))
    default = np.reshape(default, new_shape)
    default = np.rollaxis(default, (-1), model_set_axis)
    default = np.repeat(default, n_models, axis=(-1))
    return default
