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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 get_count(cls, date_field=None, start=None, end=None, filters={}):
 """ Build the DSL query for counting the number of items. :param date_field: field with the date :param start: date from which to start counting, should be a datetime.datetime object :param end: date until which to count items, should be a datetime.datetime object :param filters: dict with the filters to be applied :return: a DSL query with size parameter """

        """ Total number of items """
        query_basic = cls.__get_query_basic(date_field=date_field,
                                            start=start, end=end,
                                            filters=filters)
        # size=0 gives only the count and not the hits
        query = query_basic.extra(size=0)
        return query