code: def test_set_flags(
      self,
      allows_duplicate_labels,
      frame_or_series,
      using_copy_on_write,
      warn_copy_on_write,
  ):
      obj = DataFrame({"A": [1, 2]})
      key = (0, 0)
      if frame_or_series is Series:
          obj = obj["A"]
          key = 0
  
      result = obj.set_flags(
          allows_duplicate_labels=allows_duplicate_labels
      )
  
      if allows_duplicate_labels is None:
          # We don't update when it's not provided
          assert result.flags.allows_duplicate_labels is True
      else:
          assert (
              result.flags.allows_duplicate_labels
              is allows_duplicate_labels
          )
  
      # We made a copy
      assert obj is not result
  
      # We didn't mutate obj
      assert obj.flags.allows_duplicate_labels is True
  
      # But we didn't copy data
      if frame_or_series is Series:
          assert np.may_share_memory(obj.values, result.values)
      else:
          assert np.may_share_memory(
              obj["A"].values, result["A"].values
          )
  
      with tm.assert_cow_warning(warn_copy_on_write):
          result.iloc[key] = 0
      if using_copy_on_write:
          assert obj.iloc[key] == 1
      else:
          assert obj.iloc[key] == 0
          # set back to 1 for test below
          with tm.assert_cow_warning(warn_copy_on_write):
              result.iloc[key] = 1
  
      # Now we do copy.
      result = obj.set_flags(
          copy=True, allows_duplicate_labels=allows_duplicate_labels
      )
      result.iloc[key] = 10
      assert obj.iloc[key] == 1
  
imports: from copy import deepcopy
  import inspect
  import pydoc
  import numpy
  import pytest
  from pandas._config import using_pyarrow_string_dtype
  from pandas._config.config import option_context
  import pandas
  from pandas import DataFrame, Series, date_range, timedelta_range
  import pandas._testing
label_desc: Use image node_id 23 for calling the TestDataFrameMisc obj's underlying member method code with example usage: obj.test_set_flags(allows_duplicate_labels, frame_or_series, using_copy_on_write, warn_copy_on_write) without return types