code: def test_multiple_columns(
      df, column_name, dtype, ignore_exception, expected
  ):
      result = df.change_type(
          column_name,
          dtype=dtype,
          ignore_exception=ignore_exception,
      )
  
      assert_frame_equal(result, expected)
  
file_path: pyjanitor/tests/functions/test_change_type.py
imports: import numpy
  import pandas
  import pytest
  from pandas.testing import assert_frame_equal
label_desc: Use image node_id 6 for calling a global function with example usage: test_multiple_columns(df, column_name, dtype, ignore_exception, expected) without return types