human
I wrote the below code

    class _Dummy(object, ):
        def __init__(self, *args, **kwargs):
            raise ImportError("Cannot    import    '{}',    therefore    '{}'    is    not    available".format(dependency, klass))
    return _Dummy

What's a good function header?
 ... Here's a good function header?
assistant
#Here's a good function header.

def create_dummy_class(klass, dependency):