code: def translate_indirect(properties, context_module):
      
      assert is_iterable_typed(properties, Property)
      assert isinstance(context_module, basestring)
      result = []
      for p in properties:
          if p.value[0] == '@':
              q = qualify_jam_action(p.value[1:], context_module)
              get_manager().engine().register_bjam_action(q)
              result.append(Property(p.feature, '@' + q, p.condition))
          else:
              result.append(p)
  
      return result
docs: Assumes that all feature values that start with '@' are
      names of rules, used in 'context-module'. Such rules can be
      either local to the module or global. Qualified local rules
      with the name of the module.