def METHOD_NAME(obj):
    """
    Return a string representation of the object passed
    @param obj The object
    """
    if isinstance(obj,str):
        return obj
    elif isinstance(obj,list):
        name="group"
        for i in obj:
            name=name+"_"+i
            pass
        return name
    else:
        print("WARNING: cannot handle object of type %s. Return 'N/A'"%type(obj))
    return "N/A"