class_docstr: Tests specific to IntervalIndex.from_tuples
code: def constructor(self):
      return IntervalIndex.from_tuples
  
imports: from functools import partial
  import numpy
  import pytest
  import pandas.util._test_decorators
  from pandas.core.dtypes.common import is_unsigned_integer_dtype
  from pandas.core.dtypes.dtypes import IntervalDtype
  from pandas import Categorical, CategoricalDtype, CategoricalIndex, Index, Interval, IntervalIndex, date_range, notna, period_range, timedelta_range
  import pandas._testing
  from pandas.core.arrays import IntervalArray
  import pandas.core.common
label_desc: Use image node_id 1 for calling the TestFromTuples obj's underlying member method code with example usage: obj.constructor() and returns: IntervalIndex