<filename>saf/nonlinear/flux.py
import numpy as np

class Flux(object):
    def __init__(self, npoints):
        """TODO: Docstring for __init__.

        :npoints: TODO
        :returns: TODO

        """
        self.u = np.zeros(npoints)
        self.lamda = np.zeros(npoints)

<filename>saf/nonlinear/flux.py
import numpy as np

class Flux(object):
    def __init__(self, npoints):
        """TODO: Docstring for __init__.

        :npoints: TODO
        :returns: TODO

        """
        self.u = np.zeros(npoints)
        self.lamda = np.zeros(npoints)

TODO: Docstring for __init__.          :npoints: TODO         :returns: TODO