def __init__(self, *args, **kwargs):
        if 'reader' in kwargs:
            super(PassthroughRead, self).__setattr__('_reader', kwargs['reader'])
        else:
            raise ContainerError("A reader is required.")
        super(PassthroughRead, self).__init__(*args, **kwargs)
dataset/ETHPy150Open biocore/pyqi/pyqi/core/container.py/PassthroughRead.__init__/original