code: def test_copy(self, closed):
      expected = self.create_index(closed=closed)
  
      result = expected.copy()
      assert result.equals(expected)
  
      result = expected.copy(deep=True)
      assert result.equals(expected)
      assert result.left is not expected.left
  
imports: from itertools import permutations
  import re
  import numpy
  import pytest
  import pandas
  from pandas import Index, Interval, IntervalIndex, Timedelta, Timestamp, date_range, interval_range, isna, notna, timedelta_range
  import pandas._testing
  import pandas.core.common
label_desc: Use image node_id 6 for calling the TestIntervalIndex obj's underlying member method code with example usage: obj.test_copy(closed) without return types