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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 _build_list_params(self, params, items, label):
 """Add an AWS API-compatible parameter list to a dictionary. :type params: dict :param params: The parameter dictionary :type items: list :param items: Items to be included in the list :type label: string :param label: The parameter list's name """

        if isinstance(items, basestring):
            items = [items]
        for i in range(1, len(items) + 1):
            params['%s.%d' % (label, i)] = items[i - 1]