code: def test_10_call_mendeley_api_invalid_method_name(self):
      with self.assertRaises(NotImplementedError):
          res = self.handler.call_mendeley_api("method1", None)
  
imports: import unittest
  from mindsdb.integrations.handlers.mendeley_handler.mendeley_handler import MendeleyHandler
  from mindsdb.api.executor.data_types.response_type import RESPONSE_TYPE
label_desc: Use image node_id 12 for calling the MendeleyHandlerTest obj's underlying member method code with example usage: obj.test_10_call_mendeley_api_invalid_method_name() without return types