How to use the tblib.pickling_support function in tblib

def run(self):
        pickling_support.install()
        while True:
            try:
                index = self.queue.get()
                if index == 'stop':
                    self.queue.task_done()
                    break
            except ConnectionRefusedError:
                time.sleep(.1)
                continue
            item = self.session.items[index]
            try:
                run_test(self.session, item, None)
            except BaseException:
                import pickle
                import sys

be put them on the redis queue. Then, we swap back in the original exception
when reading off the queue. These operations are performed by
`swap_in_serializable` and `swap_back_original`, respectively.
"""


from __future__ import absolute_import
import dill
try:
    from _pytest import outcomes
except ImportError:
    from _pytest import runner as outcomes
from _pytest._code import code
from tblib import pickling_support

pickling_support.install()


class Skipped(Exception):
    """placeholder for outcomes.Skipped which is not serializable"""


class Failed(Exception):
    """placeholder for outcomes.Failed which is not serializable"""


class UnserializableException(Exception):
    """placeholder for any Exceptions that cannnot be serialized"""


SERIALIZE_TYPES = {outcomes.Skipped: Skipped,
                   outcomes.Failed: Failed}

# limitations under the License.

from hashlib import md5
from json import load, dumps as json_dumps
from base64 import b64decode, b64encode
from pickle import dumps, loads
from os import path
from . import OneServer
from tblib import pickling_support
from sys import exc_info
from six import reraise
from collections import OrderedDict
from gzip import open
from os import environ

pickling_support.install()


def read_fixture_file(fixture_file):
    f = open(fixture_file, "rt")
    ret = load(f)
    f.close()
    return ret


def write_fixture_file(fixture_file, obj):
    f = open(fixture_file, "wb")
    f.write(json_dumps(obj).encode())
    f.close()

class OneServerTester(OneServer):
    '''

""" Produce message to send back given an exception has occurred

    This does the following:

    1.  Gets the traceback
    2.  Truncates the exception and the traceback
    3.  Serializes the exception and traceback or
    4.  If they can't be serialized send string versions
    5.  Format a message and return

    See Also
    --------
    clean_exception: deserialize and unpack message into exception/traceback
    """
    MAX_ERROR_LEN = dask.config.get("distributed.admin.max-error-length")
    tblib.pickling_support.install(e, *collect_causes(e))
    tb = get_traceback()
    e2 = truncate_exception(e, MAX_ERROR_LEN)
    try:
        e3 = protocol.pickle.dumps(e2)
        protocol.pickle.loads(e3)
    except Exception:
        e2 = Exception(str(e2))
    e4 = protocol.to_serialize(e2)
    try:
        tb2 = protocol.pickle.dumps(tb)
    except Exception:
        tb = tb2 = "".join(traceback.format_tb(tb))

    if len(tb2) > MAX_ERROR_LEN:
        tb_result = None
    else:

try:
            typ = type(
                exc.__class__.__name__,
                (RemoteException, type(exc)),
                {"exception_type": type(exc)},
            )
            exceptions[type(exc)] = typ
            return typ(exc, tb)
        except TypeError:
            return exc


try:
    import tblib.pickling_support

    tblib.pickling_support.install()

    def _pack_traceback(tb):
        return tb


except ImportError:

    def _pack_traceback(tb):
        return "".join(traceback.format_tb(tb))

    def reraise(exc, tb):
        exc = remote_exception(exc, tb)
        raise exc


def pack_exception(e, dumps):

import psutil
from multiprocess import Queue
from selenium.common.exceptions import WebDriverException
from six import reraise
from six.moves import cPickle as pickle
from six.moves.queue import Empty as EmptyQueue
from tblib import pickling_support

from .Commands import command_executor
from .DeployBrowsers import deploy_browser
from .Errors import BrowserConfigError, BrowserCrashError, ProfileLoadError
from .SocketInterface import clientsocket
from .utilities.multiprocess_utils import Process, parse_traceback_for_sentry

pickling_support.install()


class Browser:
    """
     The Browser class is responsbile for holding all of the
     configuration and status information on BrowserManager process
     it corresponds to. It also includes a set of methods for managing
     the BrowserManager process and its child processes/threads.
      are the TaskManager configuration settings.
      are per-browser parameter settings (e.g. whether
                      this browser is headless, etc.)
     """

    def __init__(self, manager_params, browser_params):
        # Constants
        self._SPAWN_TIMEOUT = 120  # seconds

import binascii
from typing import Union
from typing import List

import asyncio
import torch
import websockets
import ssl
import sys
import tblib.pickling_support
import socket
import logging

tblib.pickling_support.install()

import syft as sy
from syft.frameworks.torch.tensors.interpreters import AbstractTensor
from syft.workers.virtual import VirtualWorker
from syft.exceptions import GetNotPermittedError
from syft.exceptions import ResponseSignatureError
from syft.federated import FederatedClient


class WebsocketServerWorker(VirtualWorker, FederatedClient):
    def __init__(
        self,
        hook,
        host: str,
        port: int,
        id: Union[int, str] = 0,

import sys
import threading
import time

import dill
import sentry_sdk
import six
from multiprocess import JoinableQueue
from sentry_sdk.integrations.logging import BreadcrumbHandler, EventHandler
from six.moves.queue import Empty as EmptyQueue
from tblib import pickling_support

from .Commands.utils.webdriver_utils import parse_neterror
from .SocketInterface import serversocket

pickling_support.install()

BROWSER_PREFIX = re.compile(r"^BROWSER (-)?\d+:\s*")
# These config variable names should name to lowercase kwargs for MPLogger
ENV_CONFIG_VARS = [
    'LOG_LEVEL_CONSOLE',
    'LOG_LEVEL_FILE',
    'LOG_LEVEL_SENTRY_BREADCRUMB',
    'LOG_LEVEL_SENTRY_EVENT'
]


def _retrive_log_level_from_env(env_var_name):
    """Retrieve log level from `env_var_name`

    Levels from: https://docs.python.org/3/library/logging.html#levels"""
    level = os.getenv(env_var_name, None)

import logging
import threading
from functools import partial
from contextlib import contextmanager
from multiprocessing import Process, TimeoutError, Pipe, Event

import ctypes
from ctypes.util import find_library

try:
    libc = ctypes.cdll.msvcrt # Windows
except OSError:
    libc = ctypes.cdll.LoadLibrary(find_library('c'))

from tblib import pickling_support
pickling_support.install()

class SysExcInfo(tuple):
    """
    A special class for storing sys.exc_info from a child process.
    """
    pass

def execute_in_subprocess(timeout=None, stream_logger=None):
    """
    Excecutes the "decorated" function in a subprocess,
    waits for the result, and returns it.

    Note: Returns a pseudo-decorator.
          For technical reasons, you can't actually use Python @-syntax.
    
    Example: