def METHOD_NAME(log_rates, slop):
    """
    Calculate the expected rate of noise coincidences for a combination of
    detectors given log of single detector noise rates
    Parameters
    ----------
    log_rates: dict
        Key: ifo string, Value: sequence of log single-detector trigger rates,
        units assumed to be Hz
    slop: float
        time added to maximum time-of-flight between detectors to account
        for timing error
    Returns
    -------
    numpy array
        Expected log coincidence rate in the combination, units Hz
    """
    # multiply product of trigger rates by the overlap time
    allowed_area = multiifo_noise_coincident_area(list(log_rates), slop)
    # list(dict.values()) is python-3-proof
    rateprod = numpy.sum(list(log_rates.values()), axis=0)
    return numpy.log(allowed_area) + rateprod