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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 select_group(self, group_id):
 """Copy the query and add filtering by group. Example:: query = query.select_group('1234567') :type group_id: str :param group_id: The ID of a group to filter by. :rtype: :class:`Query` :returns: The new query object. """

        new_query = copy.deepcopy(self)
        new_query._filter.group_id = group_id
        return new_query