def get_converter_fn(event_type, mapper_dict):
    """
     map from the event_type to the mapper function and message group
    :param event_type: the e-Science Central event type
    :param mapper_dict: the dictionary that maps from the event_type to the mapper function and message group
    :return: (boolean indicating if the event_type is found, mapper function, measurement group
    """
    found = event_type in mapper_dict
    if found:
        info = mapper_dict[event_type]
        res = (found,info["fn"],info["mg"])
    else:
        res = (found, None, None)
    return res