human
I wrote the below code

    be = get_backend(request, datatype=np.float32)
    def cleanup():
        be = request.getfixturevalue('backend_mkl')
        del be
    request.addfinalizer(cleanup)
    return be

What's a good function header?

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

@pytest.fixture(scope='module', params=['mkl'])
def backend_mkl(request):