code: def test_convert_unix_date():
      unix = [
          "1284101485",
          1_284_101_486,
          "1284101487000",
          1_284_101_488_000,
          "1284101489",
          "1284101490",
          -2_147_483_648,
          2_147_483_648,
      ]
      df = pd.DataFrame(unix, columns=["dates"]).convert_unix_date(
          "dates"
      )
  
      assert df["dates"].dtype == "M8[ns]"
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_convert_unix_date() without return types