def METHOD_NAME(duthost):
    """Get a cable supported speeds helper
    Args:
        duthost: DUT object
    Returns:
        object: A helper class or instance
    """
    asic_type = duthost.facts["asic_type"]
    if asic_type == "mellanox":
        return MlnxCableSupportedSpeedsHelper
    elif asic_type == "barefoot":
        return BfnCableSupportedSpeedsHelper
    else:
        return None