result = "<lease_table : slice_hrn = %s , experiment_id %s end_time = %s" \
% (self.slice_hrn, self.experiment_id, self.end_time)
result += ">"
result = "<lease_table : slice_hrn = %s , experiment_id %s end_time = %s" \
% (self.slice_hrn, self.experiment_id, self.end_time)
result += ">"