def assert_is_not(left, right, message="expected %(left)r is not %(right)r", msg=None):
    """Assert that left and right are NOT the same object"""
    if msg:
        warnings.warn("msg is deprecated", DeprecationWarning)
        message = msg

    assert left is not right, {'left': left, 'right': right} % message
dataset/ETHPy150Open Yelp/Testify/testify/assertions.py/assert_is_not/swapped operands of `%`