code: def widen(self, curr, other):
      self.result = curr
      for k, v in other.items():
          w = self.result.get(k, None)
          if w is None:
              self.result[k] = v
          elif v is not w:
              self.result[k] = w.widen(v)
  
imports: import gast
  from collections import defaultdict
  from functools import reduce
  from pythran.analyses import Aliases, CFG
  from pythran.intrinsic import Intrinsic
  from pythran.passmanager import ModuleAnalysis
  from pythran.interval import Interval, IntervalTuple, UNKNOWN_RANGE
  from pythran.tables import MODULES, attributes
label_desc: Use image node_id 4 for calling the RangeValuesBase obj's underlying member method code with example usage: obj.widen(curr, other) without return types