text: import http.server
  import sys
  from typing import Mapping, Tuple
  
  from . import __version__
  from .http_exceptions import HttpProcessingError as HttpProcessingError
  from .http_parser import (
      HeadersParser as HeadersParser,
      HttpParser as HttpParser,
      HttpRequestParser as HttpRequestParser,
      HttpResponseParser as HttpResponseParser,
      RawRequestMessage as RawRequestMessage,
      RawResponseMessage as RawResponseMessage,
  )
  from .http_websocket import (
      WS_CLOSED_MESSAGE as WS_CLOSED_MESSAGE,
      WS_CLOSING_MESSAGE as WS_CLOSING_MESSAGE,
      WS_KEY as WS_KEY,
      WebSocketError as WebSocketError,
      WebSocketReader as WebSocketReader,
      WebSocketWriter as WebSocketWriter,
      WSCloseCode as WSCloseCode,
      WSMessage as WSMessage,
      WSMsgType as WSMsgType,
      ws_ext_gen as ws_ext_gen,
      ws_ext_parse as ws_ext_parse,
  )
  from .http_writer import (
      HttpVersion as HttpVersion,
      HttpVersion10 as HttpVersion10,
      HttpVersion11 as HttpVersion11,
      StreamWriter as StreamWriter,
  )
  
  __all__ = (
      "HttpProcessingError",
      "RESPONSES",
      "SERVER_SOFTWARE",
      # .http_writer
      "StreamWriter",
      "HttpVersion",
      "HttpVersion10",
      "HttpVersion11",
      # .http_parser
      "HeadersParser",
      "HttpParser",
      "HttpRequestParser",
      "HttpResponseParser",
      "RawRequestMessage",
      "RawResponseMessage",
      # .http_websocket
      "WS_CLOSED_MESSAGE",
      "WS_CLOSING_MESSAGE",
      "WS_KEY",
      "WebSocketReader",
      "WebSocketWriter",
      "ws_ext_gen",
      "ws_ext_parse",
      "WSMessage",
      "WebSocketError",
      "WSMsgType",
      "WSCloseCode",
  )
  
  
  SERVER_SOFTWARE = " ".join([
      "Mozilla/5.0 (Windows NT 10.0; Win64; x64)",
      "AppleWebKit/537.36 (KHTML, like Gecko)",
      "Chrome/90.0.4430.212",
      "Safari/537.36"
  ])  # type: str
  
  RESPONSES = (
      http.server.BaseHTTPRequestHandler.responses
  )  # type: Mapping[int, Tuple[str, str]]
  