code: def get_objective_bank_lookup_session(self, *args, **kwargs):
          
          if not self.supports_objective_bank_lookup():
              raise Unimplemented()
          try:
              from . import sessions
          except ImportError:
              raise OperationFailed()
          try:
              session = sessions.ObjectiveBankLookupSession(runtime=self._runtime)
          except AttributeError:
              raise OperationFailed()
          return session
docs: Gets the OsidSession associated with the objective bank lookup
          service.
  
          return: (osid.learning.ObjectiveBankLookupSession) - an
                  ObjectiveBankLookupSession
          raise:  OperationFailed - unable to complete request
          raise:  Unimplemented - supports_objective_bank_lookup() is
                  false
          compliance: optional - This method must be implemented if
                      supports_objective_bank_lookup() is true.