Add OpenaiChat and Hugchat Provider

Add tests for providers with auth
Improve async support / 2x faster
Shared get_cookies by domain  function

g4f/Provider/base_provider.py

@@ -1,7 +1,11 @@
 from abc import ABC, abstractmethod
 
-from ..typing import Any, CreateResult
+from ..typing import Any, CreateResult, AsyncGenerator, Union
 
+import browser_cookie3
+import asyncio
+from time import time
+import math
 
 class BaseProvider(ABC):
     url: str
@@ -30,4 +34,81 @@ class BaseProvider(ABC):
             ("stream", "bool"),
         ]
         param = ", ".join([": ".join(p) for p in params])
-        return f"g4f.provider.{cls.__name__} supports: ({param})"
+        return f"g4f.provider.{cls.__name__} supports: ({param})"
+    
+
+_cookies = {}
+
+def get_cookies(cookie_domain: str) -> dict:
+    if cookie_domain not in _cookies:
+        _cookies[cookie_domain] = {}
+        for cookie in browser_cookie3.load(cookie_domain):
+            _cookies[cookie_domain][cookie.name] = cookie.value
+    return _cookies[cookie_domain]
+
+
+class AsyncProvider(BaseProvider):
+    @classmethod
+    def create_completion(
+        cls,
+        model: str,
+        messages: list[dict[str, str]],
+        stream: bool = False,
+        **kwargs: Any
+    ) -> CreateResult:
+        yield asyncio.run(cls.create_async(model, messages, **kwargs))
+
+    @staticmethod
+    @abstractmethod
+    async def create_async(
+        model: str,
+        messages: list[dict[str, str]],
+        **kwargs: Any,
+    ) -> str:
+        raise NotImplementedError()
+
+
+class AsyncGeneratorProvider(AsyncProvider):
+    @classmethod
+    def create_completion(
+        cls,
+        model: str,
+        messages: list[dict[str, str]],
+        stream: bool = True,
+        **kwargs: Any
+    ) -> CreateResult:
+        if stream:
+            yield from run_generator(cls.create_async_generator(model, messages, **kwargs))
+        else:
+            yield from AsyncProvider.create_completion(cls=cls, model=model, messages=messages, **kwargs)
+
+    @classmethod
+    async def create_async(
+        cls,
+        model: str,
+        messages: list[dict[str, str]],
+        **kwargs: Any,
+    ) -> str:
+        chunks = [chunk async for chunk in cls.create_async_generator(model, messages, **kwargs)]
+        if chunks:
+            return "".join(chunks)
+        
+    @staticmethod
+    @abstractmethod
+    def create_async_generator(
+            model: str,
+            messages: list[dict[str, str]],
+        ) -> AsyncGenerator:
+        raise NotImplementedError()
+
+
+def run_generator(generator: AsyncGenerator[Union[Any, str], Any]):
+    loop = asyncio.new_event_loop()
+    gen = generator.__aiter__()
+
+    while True:
+        try:
+            yield loop.run_until_complete(gen.__anext__())
+
+        except StopAsyncIteration:
+            break