code: def test_madd(client):
      client.ts().create("a")
      assert [1, 2, 3] == client.ts().madd(
          [("a", 1, 5), ("a", 2, 10), ("a", 3, 15)]
      )
  
imports: import math
  import time
  from time import sleep
  import pytest
  import redis
  from .conftest import assert_resp_response, is_resp2_connection, skip_ifmodversion_lt
label_desc: Use image node_id 8 for calling a global function with example usage: test_madd(client) without return types