code: def __iter__(self):
      for u, v in self.intervals:
          for i in range(u, v + 1):
              yield i
  
file_path: catboost/contrib/python/hypothesis/py2/hypothesis/internal/intervalsets.py
imports: from __future__ import absolute_import, division, print_function
label_desc: Use image node_id 3 for calling the IntervalSet obj's underlying member method code with example usage: obj.__iter__() without return types