code: def get_all_snapshots(self, snapshot_ids=None,
                            owner=None, restorable_by=None,
                            filters=None):
          
          params = {}
          if snapshot_ids:
              self.build_list_params(params, snapshot_ids, 'SnapshotId')
          if owner:
              params['Owner'] = owner
          if restorable_by:
              params['RestorableBy'] = restorable_by
          if filters:
              self.build_filter_params(params, filters)
          return self.get_list('DescribeSnapshots', params,
                               [('item', Snapshot)], verb='POST')
docs: Get all EBS Snapshots associated with the current credentials.
  
          :type snapshot_ids: list
          :param snapshot_ids: Optional list of snapshot ids.  If this list is
                               present, only the Snapshots associated with
                               these snapshot ids will be returned.
  
          :type owner: str
          :param owner: If present, only the snapshots owned by the specified user
                        will be returned.  Valid values are:
  
                        * self
                        * amazon
                        * AWS Account ID
  
          :type restorable_by: str
          :param restorable_by: If present, only the snapshots that are restorable
                                by the specified account id will be returned.
  
          :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.
  
          :rtype: list of :class:`boto.ec2.snapshot.Snapshot`
          :return: The requested Snapshot objects