def compare_elements(a, b):
    if a is None:
        a = []
    if b is None:
        b = []
    return set(a) == set(b)
Removes all changing elements from the string
dataset/ETHPy150Open openstack/neutron/neutron/common/utils.py/compare_elements--crossover with--dataset/ETHPy150Open duerrp/pyexperiment/tests/test_examples.py/invariant_output