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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_rng(obj=None):
 """ Get a good RNG seeded with time, pid and the object. Args: obj: some object to use to generate random seed. Returns: np.random.RandomState: the RNG. """

    seed = (id(obj) + os.getpid() +
            int(datetime.now().strftime("%Y%m%d%H%M%S%f"))) % 4294967295
    if _RNG_SEED is not None:
        seed = _RNG_SEED
    return np.random.RandomState(seed)