def METHOD_NAME(x):
    """
    x*2 is optimized to a PythonCapiCallNode. The test fails unless the CloneNode is kept up-to-date
    (in the event that the optimization changes and test_assert_path_exists fails, the thing to do
    is to find another case that's similarly optimized - the test isn't specifically interested in
    multiplication)
    >>> optimized(5)
    10
    """
    return (x:=x*2)