code: def test_issue671():
      test = pd.DataFrame([0, 5, 22, 32, 65, np.nan], columns=["a"])
  
      for i in range(0, 10):
          profile = ProfileReport(
              test,
              vars={"num": {"low_categorical_threshold": i}},
              progress_bar=False,
              pool_size=1,
          )
          assert len(profile.to_html()) > 0
  
imports: import numpy
  import pandas
  from ydata_profiling import ProfileReport
label_desc: Use image node_id 1 for calling a global function with example usage: test_issue671() without return types