code: def test_jitter_with_nans(missingdata_df):
      # Functional test to ensure jitter runs without error if NaNs are present
      missingdata_df.jitter(
          column_name="a", dest_column_name="a_jitter", scale=1.0
      )
  
file_path: pyjanitor/tests/functions/test_jitter.py
imports: import pandas
  import pytest
  from janitor.functions import jitter
label_desc: Use image node_id 3 for calling a global function with example usage: test_jitter_with_nans(missingdata_df) without return types