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from __future__ import annotations
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import asyncio
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import sys
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from asyncio import AbstractEventLoop
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from os import path
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from typing import Dict, List
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import browser_cookie3
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# Change event loop policy on windows
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if sys.platform == 'win32':
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if isinstance(
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asyncio.get_event_loop_policy(), asyncio.WindowsProactorEventLoopPolicy
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):
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asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())
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# Local Cookie Storage
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_cookies: Dict[str, Dict[str, str]] = {}
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# If event loop is already running, handle nested event loops
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# If "nest_asyncio" is installed, patch the event loop.
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def get_event_loop() -> AbstractEventLoop:
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try:
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asyncio.get_running_loop()
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except RuntimeError:
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try:
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return asyncio.get_event_loop()
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except RuntimeError:
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asyncio.set_event_loop(asyncio.new_event_loop())
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return asyncio.get_event_loop()
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try:
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event_loop = asyncio.get_event_loop()
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if not hasattr(event_loop.__class__, "_nest_patched"):
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import nest_asyncio
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nest_asyncio.apply(event_loop)
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return event_loop
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except ImportError:
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raise RuntimeError(
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'Use "create_async" instead of "create" function in a running event loop. Or install the "nest_asyncio" package.'
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)
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# Load cookies for a domain from all supported browsers.
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# Cache the results in the "_cookies" variable.
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def get_cookies(cookie_domain: str) -> Dict[str, str]:
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if cookie_domain not in _cookies:
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_cookies[cookie_domain] = {}
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try:
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for cookie in browser_cookie3.load(cookie_domain):
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_cookies[cookie_domain][cookie.name] = cookie.value
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except:
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pass
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return _cookies[cookie_domain]
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def format_prompt(messages: List[Dict[str, str]], add_special_tokens=False) -> str:
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if add_special_tokens or len(messages) > 1:
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formatted = "\n".join(
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[
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"%s: %s" % ((message["role"]).capitalize(), message["content"])
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for message in messages
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]
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)
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return f"{formatted}\nAssistant:"
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else:
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return messages[0]["content"]
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def get_browser(user_data_dir: str = None):
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from undetected_chromedriver import Chrome
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from platformdirs import user_config_dir
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if not user_data_dir:
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user_data_dir = user_config_dir("g4f")
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user_data_dir = path.join(user_data_dir, "Default")
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return Chrome(user_data_dir=user_data_dir)
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