class_docstr: Object to encapsulate the code related to handle the data requests passing to executor and its returned values
class_docstr_tok: ["Object","to","encapsulate","the","code","related","to","handle","the","data","requests","passing","to","executor","and","its","returned","values"]
code: def _refresh_executor(self, changed_files):
      import copy
      import importlib
      import inspect
      import sys
  
      try:
          sys_mod_files_modules = {
              getattr(module, "__file__", ""): module
              for module in sys.modules.values()
          }
  
          for file in changed_files:
              if file in sys_mod_files_modules:
                  file_module = sys_mod_files_modules[file]
                  # TODO: unable to reload main module (for instance, Executor implementation and Executor.serve are
                  #  in the same file). Raising a warning for now
                  if file_module.__name__ == "__main__":
                      self.logger.warning(
                          "The main module file was changed, cannot reload Executor, please restart "
                          "the application"
                      )
                  self.logger.debug(f"Reloading {file_module}")
                  try:
                      importlib.reload(file_module)
                  except ModuleNotFoundError:
                      spec = importlib.util.spec_from_file_location(
                          file_module.__name__, file_module.__file__
                      )
                      spec.loader.exec_module(file_module)
  
                  self.logger.debug(
                      f"Reloaded {file_module} successfully"
                  )
              else:
                  self.logger.debug(
                      f"Changed file {file} was not previously imported."
                  )
      except Exception as exc:
          self.logger.error(
              f"Exception when refreshing Executor when changes detected in {changed_files}: {exc}"
          )
          raise exc
  
      executor_module = inspect.getmodule(self._executor.__class__)
      try:
          importlib.reload(executor_module)
      except ModuleNotFoundError:
          spec = importlib.util.spec_from_file_location(
              executor_module.__name__, executor_module.__file__
          )
          spec.loader.exec_module(file_module)
      requests = copy.copy(self._executor.requests)
      old_cls = self._executor.__class__
      new_cls = getattr(
          importlib.import_module(old_cls.__module__), old_cls.__name__
      )
      new_executor = new_cls.__new__(new_cls)
      new_executor.__dict__ = self._executor.__dict__
      for k, v in requests.items():
          requests[k] = getattr(
              new_executor.__class__, requests[k].fn.__name__
          )
      self._executor = new_executor
      self._executor.requests.clear()
      requests = {k: v.__name__ for k, v in requests.items()}
      self._executor._add_requests(requests)
  
imports: import argparse
  import asyncio
  import functools
  import json
  import os
  import tempfile
  import threading
  import uuid
  import warnings
  from typing import TYPE_CHECKING, AsyncIterator, Dict, Generator, List, Optional, Tuple, Union
  from google.protobuf.struct_pb2 import Struct
  from jina._docarray import DocumentArray, docarray_v2
  from jina.constants import __default_endpoint__
  from jina.excepts import BadConfigSource, RuntimeTerminated
  from jina.helper import get_full_version
  from jina.importer import ImportExtensions
  from jina.proto import jina_pb2
  from jina.serve.executors import BaseExecutor
  from jina.serve.instrumentation import MetricsTimer
  from jina.serve.runtimes.worker.batch_queue import BatchQueue
  from jina.types.request.data import DataRequest, SingleDocumentRequest
label_desc: Use image node_id 8 for calling the WorkerRequestHandler obj's underlying member method code with example usage: obj._refresh_executor(changed_files) without return types