code: def get_all_bundle_tasks(self, bundle_ids=None, filters=None):
          
  
          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')
docs: 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.