code: def test_create_run_command(
      debug: bool,
      auto_tune: bool,
      tensor_fusion_threshold: int,
      tensor_fusion_cycle_time: int,
  ) -> None:
      ip_addresses = ["localhost", "128.140.2.4"]
      host_slot_counts = [8, 8]
      optimizations = {
          "auto_tune_tensor_fusion": auto_tune,
          "tensor_fusion_threshold": tensor_fusion_threshold,
          "tensor_fusion_cycle_time": tensor_fusion_cycle_time,
      }
  
      expected_horovod_run_cmd = [
          "horovodrun",
          "-np",
          "16",
          "-p",
          str(constants.DTRAIN_SSH_PORT),
          "-H",
          "localhost:8,128.140.2.4:8",
          "--start-timeout",
          str(constants.HOROVOD_STARTUP_TIMEOUT_SECONDS),
          "--gloo-timeout-seconds",
          str(constants.HOROVOD_GLOO_TIMEOUT_SECONDS),
      ]
      if auto_tune:
          expected_horovod_run_cmd.extend(
              [
                  "--autotune",
                  "--autotune-log-file",
                  str(constants.HOROVOD_AUTOTUNE_LOG_FILEPATH),
              ]
          )
      else:
          expected_horovod_run_cmd.extend(
              [
                  "--fusion-threshold-mb",
                  str(tensor_fusion_threshold),
                  "--cycle-time-ms",
                  str(tensor_fusion_cycle_time),
              ]
          )
      expected_horovod_run_cmd.extend(
          [
              "--cache-capacity",
              str(1024),
              "--no-hierarchical-allreduce",
              "--no-hierarchical-allgather",
          ]
      )
      if debug:
          expected_horovod_run_cmd.append("--verbose")
      expected_horovod_run_cmd.append("--")
  
      created_horovod_run_cmd = horovod.create_run_command(
          host_slot_counts=host_slot_counts,
          ip_addresses=ip_addresses,
          inter_node_network_interface=None,
          optimizations=optimizations,
          debug=debug,
          optional_args=[],
      )
  
      assert expected_horovod_run_cmd == created_horovod_run_cmd
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_create_run_command(debug, auto_tune, tensor_fusion_threshold, tensor_fusion_cycle_time) without return types