code: def configure_middlewares(self) -> None:
      if self.config["ENABLE_CORS"]:
          # pylint: disable=import-outside-toplevel
          from flask_cors import CORS
  
          CORS(self.superset_app, **self.config["CORS_OPTIONS"])
  
      if self.config["ENABLE_PROXY_FIX"]:
          self.superset_app.wsgi_app = ProxyFix(
              self.superset_app.wsgi_app,
              **self.config["PROXY_FIX_CONFIG"],
          )
  
      if self.config["ENABLE_CHUNK_ENCODING"]:
  
          class ChunkedEncodingFix:  # pylint: disable=too-few-public-methods
              def __init__(self, app: Flask) -> None:
                  self.app = app
  
              def __call__(
                  self,
                  environ: dict[str, Any],
                  start_response: Callable[..., Any],
              ) -> Any:
                  # Setting wsgi.input_terminated tells werkzeug.wsgi to ignore
                  # content-length and read the stream till the end.
                  if (
                      environ.get("HTTP_TRANSFER_ENCODING", "").lower()
                      == "chunked"
                  ):
                      environ["wsgi.input_terminated"] = True
                  return self.app(environ, start_response)
  
          self.superset_app.wsgi_app = ChunkedEncodingFix(
              self.superset_app.wsgi_app
          )
  
      if self.config["UPLOAD_FOLDER"]:
          with contextlib.suppress(OSError):
              os.makedirs(self.config["UPLOAD_FOLDER"])
      for middleware in self.config["ADDITIONAL_MIDDLEWARE"]:
          self.superset_app.wsgi_app = middleware(
              self.superset_app.wsgi_app
          )
  
      # Flask-Compress
      Compress(self.superset_app)
  
      # Talisman
      talisman_enabled = self.config["TALISMAN_ENABLED"]
      talisman_config = (
          self.config["TALISMAN_DEV_CONFIG"]
          if self.superset_app.debug
          else self.config["TALISMAN_CONFIG"]
      )
      csp_warning = self.config["CONTENT_SECURITY_POLICY_WARNING"]
  
      if talisman_enabled:
          talisman.init_app(self.superset_app, **talisman_config)
  
      show_csp_warning = False
      if (
          csp_warning
          and not self.superset_app.debug
          and (
              not talisman_enabled
              or not talisman_config
              or not talisman_config.get("content_security_policy")
          )
      ):
          show_csp_warning = True
  
      if show_csp_warning:
          logger.warning(
              "We haven't found any Content Security Policy (CSP) defined in "
              "the configurations. Please make sure to configure CSP using the "
              "TALISMAN_ENABLED and TALISMAN_CONFIG keys or any other external "
              "software. Failing to configure CSP have serious security implications. "
              "Check https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP for more "
              "information. You can disable this warning using the "
              "CONTENT_SECURITY_POLICY_WARNING key."
          )
  
imports: from __future__ import annotations
  import contextlib
  import logging
  import os
  import sys
  from typing import Any, Callable, TYPE_CHECKING
  import wtforms_json
  from deprecation import deprecated
  from flask import Flask, redirect
  from flask_appbuilder import expose, IndexView
  from flask_babel import gettext
  from flask_compress import Compress
  from flask_session import Session
  from werkzeug.middleware.proxy_fix import ProxyFix
  from superset.constants import CHANGE_ME_SECRET_KEY
  from superset.extensions import _event_logger, APP_DIR, appbuilder, async_query_manager_factory, cache_manager, celery_app, csrf, db, encrypted_field_factory, feature_flag_manager, machine_auth_provider_factory, manifest_processor, migrate, profiling, results_backend_manager, ssh_manager_factory, stats_logger_manager, talisman
  from superset.security import SupersetSecurityManager
  from superset.superset_typing import FlaskResponse
  from superset.tags.core import register_sqla_event_listeners
  from superset.utils.core import is_test, pessimistic_connection_handling
  from superset.utils.log import DBEventLogger, get_event_logger_from_cfg_value
label_desc: Use image node_id 20 for calling the SupersetAppInitializer obj's underlying member method code with example usage: obj.configure_middlewares() and returns: self