code: def _get_handler(self, handler_ctx: db_pb2.HandlerContext):
      ctx.load(json.loads(handler_ctx.context))
      handler_class = get_handler(handler_ctx.handler_type)
      logger.info(
          "%s._get_handler: requested instance of %s handler",
          self.__class__.__name__,
          handler_class,
      )
      handler_kwargs = json.loads(handler_ctx.handler_params)
      # Create an instance of FileController for
      # 'files' type of handler
      if handler_ctx.handler_type == "files":
          handler_kwargs["file_controller"] = FileController()
      return handler_class(**handler_kwargs)
  
imports: import json
  import pickle
  import traceback
  from concurrent import futures
  import grpc
  from mindsdb.microservices_grpc.db import db_pb2_grpc
  from mindsdb.microservices_grpc.db import db_pb2, common_pb2
  from mindsdb.interfaces.file.file_controller import FileController
  from mindsdb.integrations.libs.handler_helpers import get_handler
  from mindsdb.api.executor.data_types.response_type import RESPONSE_TYPE
  from mindsdb.utilities.context import context
  from mindsdb.utilities import log
label_desc: Use image node_id 2 for calling the DBServiceServicer obj's underlying member method code with example usage: obj._get_handler(handler_ctx) and returns: handler_class