2024-04-06 14:19:04 -04:00
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from __future__ import annotations
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import re
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import os
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import time
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import random
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import string
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2024-04-06 15:12:02 -04:00
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from .types import Client as BaseClient
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from .types import BaseProvider, ProviderType, FinishReason
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from .stubs import ChatCompletion, ChatCompletionChunk, Image, ImagesResponse
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from ..typing import Union, Iterator, Messages, ImageType, AsyncIerator
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from ..image import ImageResponse as ImageProviderResponse
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from ..errors import NoImageResponseError, RateLimitError, MissingAuthError
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from .. import get_model_and_provider, get_last_provider
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from .helper import read_json, find_stop, filter_none
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ä
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async def iter_response(
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response: AsyncIterator[str],
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stream: bool,
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response_format: dict = None,
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max_tokens: int = None,
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stop: list = None
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) -> AsyncIterResponse:
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content = ""
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finish_reason = None
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completion_id = ''.join(random.choices(string.ascii_letters + string.digits, k=28))
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count: int = 0
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async for chunk in response:
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if isinstance(chunk, FinishReason):
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finish_reason = chunk.reason
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break
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content += str(chunk)
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count += 1
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if max_tokens is not None and count >= max_tokens:
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finish_reason = "length"
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first, content, chunk = find_stop(stop, content, chunk)
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if first != -1:
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finish_reason = "stop"
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if stream:
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yield ChatCompletionChunk(chunk, None, completion_id, int(time.time()))
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if finish_reason is not None:
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break
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finish_reason = "stop" if finish_reason is None else finish_reason
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if stream:
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yield ChatCompletionChunk(None, finish_reason, completion_id, int(time.time()))
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else:
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if response_format is not None and "type" in response_format:
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if response_format["type"] == "json_object":
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content = read_json(content)
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yield ChatCompletion(content, finish_reason, completion_id, int(time.time()))
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async def iter_append_model_and_provider(response: AsyncIterResponse) -> IterResponse:
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last_provider = None
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async for chunk in response:
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last_provider = get_last_provider(True) if last_provider is None else last_provider
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chunk.model = last_provider.get("model")
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chunk.provider = last_provider.get("name")
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yield chunk
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class Client(BaseClient):
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def __init__(
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self,
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**kwargs
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):
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super().__init__(**kwargs)
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self.chat: Chat = Chat(self, provider)
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self.images: Images = Images(self, image_provider)
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async def cast_iter_async(iter):
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for chunk in iter:
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yield chunk
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def create_response(
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messages: Messages,
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model: str,
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provider: ProviderType = None,
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stream: bool = False,
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response_format: dict = None,
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max_tokens: int = None,
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stop: Union[list[str], str] = None,
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api_key: str = None,
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**kwargs
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):
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if hasattr(provider, "create_async_generator):
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create = provider.create_async_generator
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else:
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create = provider.create_completion
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response = create(
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model, messages, stream,
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**filter_none(
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proxy=self.client.get_proxy(),
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max_tokens=max_tokens,
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stop=stop,
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api_key=self.client.api_key if api_key is None else api_key
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),
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**kwargs
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)
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if not hasattr(provider, "create_async_generator")
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response = cast_iter_async(response)
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return response
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class Completions():
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def __init__(self, client: Client, provider: ProviderType = None):
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self.client: Client = client
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self.provider: ProviderType = provider
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def create(
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self,
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messages: Messages,
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model: str,
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provider: ProviderType = None,
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stream: bool = False,
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response_format: dict = None,
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ignored : list[str] = None,
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ignore_working: bool = False,
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ignore_stream: bool = False,
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**kwargs
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) -> Union[ChatCompletion, AsyncIterator[ChatCompletionChunk]]:
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model, provider = get_model_and_provider(
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model,
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self.provider if provider is None else provider,
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stream,
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ignored,
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ignore_working,
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ignore_stream,
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**kwargs
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)
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stop = [stop] if isinstance(stop, str) else stop
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response = create_response(messages, model, provider, stream, **kwargs)
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response = iter_response(response, stream, response_format, max_tokens, stop)
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response = iter_append_model_and_provider(response)
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return response if stream else anext(response)
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class Chat():
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completions: Completions
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def __init__(self, client: Client, provider: ProviderType = None):
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self.completions = Completions(client, provider)
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async def iter_image_response(response: Iterator) -> Union[ImagesResponse, None]:
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async for chunk in list(response):
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if isinstance(chunk, ImageProviderResponse):
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return ImagesResponse([Image(image) for image in chunk.get_list()])
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def create_image(client: Client, provider: ProviderType, prompt: str, model: str = "", **kwargs) -> AsyncIterator:
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prompt = f"create a image with: {prompt}"
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return provider.create_async_generator(
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model,
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[{"role": "user", "content": prompt}],
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True,
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proxy=client.get_proxy(),
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**kwargs
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)
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class Images():
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def __init__(self, client: Client, provider: ImageProvider = None):
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self.client: Client = client
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self.provider: ImageProvider = provider
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self.models: ImageModels = ImageModels(client)
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async def generate(self, prompt, model: str = None, **kwargs) -> ImagesResponse:
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provider = self.models.get(model, self.provider)
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if isinstance(provider, type) and issubclass(provider, BaseProvider):
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response = create_image(self.client, provider, prompt, **kwargs)
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else:
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try:
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response = list(provider.create(prompt))
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except (RateLimitError, MissingAuthError) as e:
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# Fallback for default provider
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if self.provider is None:
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response = create_image(self.client, self.models.you, prompt, model or "dall-e", **kwargs)
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else:
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raise e
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image = iter_image_response(response)
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if image is None:
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raise NoImageResponseError()
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return image
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async def create_variation(self, image: ImageType, model: str = None, **kwargs):
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provider = self.models.get(model, self.provider)
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result = None
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if isinstance(provider, type) and issubclass(provider, BaseProvider):
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response = provider.create_async_generator(
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"",
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[{"role": "user", "content": "create a image like this"}],
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True,
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image=image,
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proxy=self.client.get_proxy(),
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**kwargs
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)
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async for chunk in response:
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if isinstance(chunk, ImageProviderResponse):
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result = ([chunk.images] if isinstance(chunk.images, str) else chunk.images)
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result = ImagesResponse([Image(image)for image in result])
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if result is None:
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raise NoImageResponseError()
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return result
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