code: def test_jitter(dataframe):
      # Functional test to ensure jitter runs without error
      dataframe.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 2 for calling a global function with example usage: test_jitter(dataframe) without return types