from __future__ import annotations
import asyncio
from ..base_provider import AsyncGeneratorProvider, ProviderModelMixin
from ..helper import format_prompt, filter_none
from ...typing import AsyncResult, Messages
from ...requests import StreamSession, raise_for_status
from ...image import ImageResponse
from ...errors import ResponseError, MissingAuthError
class Replicate(AsyncGeneratorProvider, ProviderModelMixin):
url = "https://replicate.com"
working = True
default_model = "mistralai/mixtral-8x7b-instruct-v0.1"
api_base = "https://api.replicate.com/v1/models/"
@classmethod
async def create_async_generator(
cls,
model: str,
messages: Messages,
api_key: str = None,
proxy: str = None,
timeout: int = 180,
system_prompt: str = None,
max_new_tokens: int = None,
temperature: float = None,
top_p: float = None,
top_k: float = None,
stop: list = None,
extra_data: dict = {},
headers: dict = {},
**kwargs
) -> AsyncResult:
model = cls.get_model(model)
if api_key is None:
raise MissingAuthError("api_key is missing")
headers["Authorization"] = f"Bearer {api_key}"
async with StreamSession(
proxies={"all": proxy},
headers=headers,
timeout=timeout
) as session:
data = {
"stream": True,
"input": {
"prompt": format_prompt(messages),
**filter_none(
system_prompt=system_prompt,
max_new_tokens=max_new_tokens,
temperature=temperature,
top_p=top_p,
top_k=top_k,
stop_sequences=",".join(stop) if stop else None
),
**extra_data
},
}
url = f"{cls.api_base.rstrip('/')}/{model}/predictions"
async with session.post(url, json=data) as response:
await raise_for_status(response)
result = await response.json()
if "id" not in result:
raise ResponseError(f"Invalid response: {result}")
async with session.get(result["urls"]["stream"], headers={"Accept": "text/event-stream"}) as response:
await raise_for_status(response)
event = None
async for line in response.iter_lines():
if line.startswith(b"event: "):
event = line[7:]
elif event == b"output":
if line.startswith(b"data: "):
yield line[6:].decode()
elif not line.startswith(b"id: "):
continue#yield "+"+line.decode()
elif event == b"done":
break
