code: def test_parse_wide_dataset():
      n_cols = 1_000_000
      results_dir = pu.locate("results")
      wide_path = os.path.join(results_dir, "wide1M.svmlight")
  
      with open(wide_path, "w") as text_file:
          text_file.write("1 %s:2.72" % n_cols)
  
      data_start = time.time()
      parsed = h2o.import_file(wide_path)
      data_duration = time.time() - data_start
      names = parsed.names
      print("wide data parsing took {}s".format(data_duration))
      assert len(names) == n_cols + 1
  
imports: import os
  import sys
  import time
  import h2o
  from tests import pyunit_utils
label_desc: Use image node_id 1 for calling a global function with example usage: test_parse_wide_dataset() without return types