code: def test_8_disconnect(self):
      assert self.handler.disconnect()
  
file_path: mindsdb/mindsdb/integrations/handlers/edgelessdb_handler/tests/test_edgelessdb_handler.py
imports: import unittest
  from mindsdb.integrations.handlers.edgelessdb_handler.edgelessdb_handler import EdgelessDBHandler
  from mindsdb.api.executor.data_types.response_type import RESPONSE_TYPE
label_desc: Use image node_id 10 for calling the EdgelessDBHandlerTest obj's underlying member method code with example usage: obj.test_8_disconnect() without return types