Function py_predict_xor_lfsr 

pub(crate) fn py_predict_xor_lfsr(
    _py: Python<'_>,
    spikes: PyReadonlyArray1<'_, i8>,
    n_channels: usize,
    alpha_q8: i32,
    seed: u16,
) -> PyResult<(Py<PyArray1<i8>>, usize)>