"""
Input and output
"""


class band_structure(object):
    def __init__(self):
        pass
    def load_band_file(self, fname):
        pass

    def save_band_file(self, fname):
        pass

def save_COHP(model):
    pass

def save_density(model):
    pass

def save_wfk(model):
    pass

def save_results(model):
    pass

def load_density(model, fname=None):
    pass

def load_wfk(model, fname=None):
    pass


