code: def company_sales_df():
      """Fixture for tests below."""
      company_sales = {
          "SalesMonth": ["Jan", "Feb", "Feb", "Mar", "April"],
          "Company1": [150.0, 260.0, 230.0, 300.0, 400.0],
          "Company2": [500.0, 210.0, 250.0, np.nan, 80.0],
          "Company3": [400.0, 500.0, 500.0, 600.0, 675.0],
      }
      df = pd.DataFrame.from_dict(company_sales)
      return df
  
file_path: pyjanitor/tests/functions/test_sort_column_value_order.py
imports: import numpy
  import pandas
  import pytest
  from janitor.functions import sort_column_value_order
label_desc: Use image node_id 1 for calling a global function with example usage: company_sales_df() and returns: df