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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_all_bundle_tasks(self, bundle_ids=None, filters=None):
 """ Retrieve current bundling tasks. If no bundle id is specified, all tasks are retrieved. :type bundle_ids: list :param bundle_ids: A list of strings containing identifiers for previously created bundling tasks. :type filters: dict :param filters: Optional filters that can be used to limit the results returned. Filters are provided in the form of a dictionary consisting of filter names as the key and filter values as the value. The set of allowable filter names/values is dependent on the request being performed. Check the EC2 API guide for details. """


        params = {}
        if bundle_ids:
            self.build_list_params(params, bundle_ids, 'BundleId')
        if filters:
            self.build_filter_params(params, filters)
        return self.get_list('DescribeBundleTasks', params,
                             [('item', BundleInstanceTask)], verb='POST')