code: def test_is_phone_column_by_column_name():
      df = pd.DataFrame({"phne": ["123", "321", "345"]})
  
      assert detector.get_search_key_column(df) is None
  
      df = pd.DataFrame({"cellphone": ["123", "321", "345"]})
  
      assert detector.get_search_key_column(df) == "cellphone"
  
      df = pd.DataFrame({"msisdn": ["123", "321", "345"]})
  
      assert detector.get_search_key_column(df) == "msisdn"
  
      df = pd.DataFrame({"phone": ["123", "321", "345"]})
  
      assert detector.get_search_key_column(df) == "phone"
  
      df = pd.DataFrame({"phonenumber": ["123", "321", "345"]})
  
      assert detector.get_search_key_column(df) == "phonenumber"
  
      df = pd.DataFrame({"phone_number": ["123", "321", "345"]})
  
      assert detector.get_search_key_column(df) == "phone_number"
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_is_phone_column_by_column_name() without return types