code: def __or__(self, obj):
      for name, locations in obj.items():
          for file, linenos in locations.items():
              for lineno in linenos:
                  self.add(name, file, lineno)
      return self
  
imports: from __future__ import print_function, division, absolute_import
  import collections
label_desc: Use image node_id 3 for calling the ImportedModules obj's underlying member method code with example usage: obj.__or__(obj) and returns: self