enh(mistral): Upgrade mistralai dependency from 0.4.2 to 1.0.2

[manubhardwaj]

Following the mistralai package upgrade instructions:

• change .chat() to .chat.complete()
• change MistralClient to Mistral (aliased as MistralAI)

Also corrected a problem with @backoff.on_exception where it needs object mistralai_api_error to exist.

[AnnaHubbard5]

This will solve the current error when trying to import dspy after pip install mistralai:

NameError: name 'mistralai_api_error' is not defined
File <command-182458377210475>, line 1
----> 1 import dspy
File /local_disk0/.ephemeral_nfs/envs/pythonEnv-90e78ca5-1c45-4f00-bfc9-4301f2ce1c16/lib/python3.11/site-packages/dspy/__init__.py:1
----> 1 import dsp
      2 from dsp.modules.hf_client import ChatModuleClient, HFClientSGLang, HFClientVLLM, HFServerTGI
      4 from .predict import *
File /local_disk0/.ephemeral_nfs/envs/pythonEnv-90e78ca5-1c45-4f00-bfc9-4301f2ce1c16/lib/python3.11/site-packages/dsp/__init__.py:1
----> 1 from .modules import *  # noqa
      2 from .primitives import *  # noqa
      3 from .adapters import *  # noqa
File /local_disk0/.ephemeral_nfs/envs/pythonEnv-90e78ca5-1c45-4f00-bfc9-4301f2ce1c16/lib/python3.11/site-packages/dsp/modules/__init__.py:22
     20 from .hf_client import Anyscale, HFClientTGI, Together
     21 from .llama import *
---> 22 from .mistral import *
     23 from .ollama import *
     24 from .multi_openai import MultiOpenAI
File /local_disk0/.ephemeral_nfs/envs/pythonEnv-90e78ca5-1c45-4f00-bfc9-4301f2ce1c16/lib/python3.11/site-packages/dsp/modules/mistral.py:31
     27         return False
     28     return True
---> 31 class Mistral(LM):
     32     """Wrapper around Mistral AI's API.
     33 
     34     Currently supported models include `mistral-small-latest`, `mistral-medium-latest`, `mistral-large-latest`.
     35     """
     37     def __init__(
     38         self,
     39         model: str = "mistral-medium-latest",
     40         api_key: Optional[str] = None,
     41         **kwargs,
     42     ):
File /local_disk0/.ephemeral_nfs/envs/pythonEnv-90e78ca5-1c45-4f00-bfc9-4301f2ce1c16/lib/python3.11/site-packages/dsp/modules/mistral.py:101, in Mistral()
     95     self.history.append(history)
     97     return response
     99 @backoff.on_exception(
    100     backoff.expo,
--> 101     (mistralai_api_error),
    102     max_time=settings.backoff_time,
    103     on_backoff=backoff_hdlr,
    104     giveup=giveup_hdlr,
    105 )
    106 def request(self, prompt: str, **kwargs):
    107     """Handles retrieval of completions from Mistral AI whilst handling API errors."""
    108     prompt = prompt + "Follow the format only once !"

[arnavsinghvi11]

Thanks @manubhardwaj @AnnaHubbard5 !