(obj, **kwargs)
return obj
https://en.wikipedia.org/wiki/Identity_function
https://en.wikipedia.org/wiki/Identity_function
https : // en . wikipedia . org / wiki / Identity_function
def identity(obj, **kwargs):
    """
    https://en.wikipedia.org/wiki/Identity_function
    """
    return obj
def identity ( obj , * * kwargs ) : return obj