code: def get_context_data(cls, instance):
          '''
          Generate a Context Parameters object based on the instance's
          configuration.
          We do not use the hlapi currently, but the rfc3413.oneliner.cmdgen
          accepts Context Engine Id (always None for now) and Context Name parameters.
          '''
  
          context_engine_id = None
          context_name = ''
  
          if "user" in instance:
              if 'context_engine_id' in instance:
                  context_engine_id = OctetString(instance['context_engine_id'])
              if 'context_name' in instance:
                  context_name = instance['context_name']
  
          return context_engine_id, context_namf get_context_data(cls, instance):
          '''
          Generate a Context Parameters object based on the instance's
          configuration.
          We do not use the hlapi currently, but the rfc3413.oneliner.cmdgen
          accepts Context Engine Id (always None for now) and Context Name parameters.
          '''
  
          context_engine_id = None
          context_name = ''
  
          if "user" in instance:
              if 'context_engine_id' in instance:
                  context_engine_id = OctetString(instance['context_engine_id'])
              if 'context_name' in instance:
                  context_name = instance['context_name']
  
          return context_engine_id, context_name
docs: Generate a Context Parameters object based on the instance's
          configuration.
          We do not use the hlapi currently, but the rfc3413.oneliner.cmdgen
          accepts Context Engine Id (always None for now) and Context Name parameters.