code: def create_index(self, closed="right"):
      return IntervalIndex.from_breaks(range(11), closed=closed)
  
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 1 for calling the TestIntervalIndex obj's underlying member method code with example usage: obj.create_index(closed) and returns: IntervalIndex