class_docstr: Configuration for an external HTTP endpoint.
class_docstr_tok: ["Configuration","for","an","external","HTTP","endpoint","."]
docstr: Creates and returns a configured aiohttp client session.
docstr_tok: ["Creates","and","returns","a","configured","aiohttp","client","session","."]
code: def session(self) -> aiohttp.ClientSession:
      """Creates and returns a configured aiohttp client session."""
      # create authentication parameters
      if self.basic_auth:
          auth = aiohttp.BasicAuth(
              self.basic_auth["username"], self.basic_auth["password"]
          )
      else:
          auth = None
  
      return aiohttp.ClientSession(
          headers=self.headers,
          auth=auth,
          timeout=aiohttp.ClientTimeout(total=DEFAULT_REQUEST_TIMEOUT),
      )
  
imports: import ssl
  from functools import cached_property
  import aiohttp
  import logging
  import os
  from aiohttp.client_exceptions import ContentTypeError
  from sanic.request import Request
  from typing import Any, Optional, Text, Dict
  from rasa.shared.exceptions import FileNotFoundException
  import rasa.shared.utils.io
  import rasa.utils.io
  from rasa.core.constants import DEFAULT_REQUEST_TIMEOUT
label_desc: Use image node_id 2 for calling the EndpointConfig obj's underlying member method code with example usage: obj.session() and returns: aiohttp