code: def test_df_setitem():
      df = DataFrame({"foo": (1, 1, 3)})
  
      df["bar"] = [1, 2, 3]
      required_columns = SelfColumnSelector.select(df.data)
      assert required_columns == {"bar"}
  
      df[["baz", "qux"]] = 1, 2
      required_columns = SelfColumnSelector.select(df.data)
      assert required_columns == {"baz", "qux"}
  
imports: from ......dataframe import DataFrame
  from ..self_column_selector import SelfColumnSelector
label_desc: Use image node_id 1 for calling a global function with example usage: test_df_setitem() without return types