def METHOD_NAME(num_chans):
    """
    Return an element with random values
    2400 points long, the minimum allowed by the instrument
    """
    data = {n: {} for n in range(1, 1 + num_chans)}
    for key in data.keys():
        data[key] = {'wfm': np.random.randn(2400),
                     'm1': np.random.randint(0, 2, 2400),
                     'm2': np.random.randint(0, 2, 2400)}
    return data