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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _add_kwarg_datasets(datasets, kwargs):
 """Add data sets of the given kwargs. :param datasets: The dict where to accumulate data sets. :type datasets: `dict` :param kwargs: Dict of pre-named data sets. :type kwargs: `dict` of `unicode` to varies """

    for test_method_suffix, dataset in six.iteritems(kwargs):
        datasets[test_method_suffix] = dataset