Cookbook: Mistral SDK Integration (Python)

!pip install mistralai langfuse

import os
 
# get keys for your project from https://cloud.langfuse.com
os.environ["LANGFUSE_PUBLIC_KEY"] = "pk-lf-xxx"
os.environ["LANGFUSE_SECRET_KEY"] = "sk-lf-xxx"
os.environ["LANGFUSE_HOST"] = "https://cloud.langfuse.com" # 🇪🇺 EU region
# os.environ["LANGFUSE_HOST"] = "https://us.cloud.langfuse.com" # 🇺🇸 US region
 
# Your Mistral key
os.environ["MISTRAL_API_KEY"] = "xxx"

from mistralai import Mistral
 
# Initialize Mistral client
mistral_client = Mistral(api_key=os.environ["MISTRAL_API_KEY"])

from langfuse.decorators import langfuse_context, observe
 
# Function to handle Mistral completion calls, wrapped with @observe to log the LLM interaction
@observe(as_type="generation")
def mistral_completion(**kwargs):
  # Clone kwargs to avoid modifying the original input
  kwargs_clone = kwargs.copy()
 
  # Extract relevant parameters from kwargs
  input = kwargs_clone.pop('messages', None)
  model = kwargs_clone.pop('model', None)
  min_tokens = kwargs_clone.pop('min_tokens', None)
  max_tokens = kwargs_clone.pop('max_tokens', None)
  temperature = kwargs_clone.pop('temperature', None)
  top_p = kwargs_clone.pop('top_p', None)
 
  # Filter and prepare model parameters for logging
  model_parameters = {
        "maxTokens": max_tokens,
        "minTokens": min_tokens,
        "temperature": temperature,
        "top_p": top_p
    }
  model_parameters = {k: v for k, v in model_parameters.items() if v is not None}
 
  # Log the input and model parameters before calling the LLM
  langfuse_context.update_current_observation(
      input=input,
      model=model,
      model_parameters=model_parameters,
      metadata=kwargs_clone,
 
  )
 
  # Call the Mistral model to generate a response
  res = mistral_client.chat.complete(**kwargs)
 
  # Log the usage details and output content after the LLM call
  langfuse_context.update_current_observation(
      usage={
          "input": res.usage.prompt_tokens,
          "output": res.usage.completion_tokens
      },
      output=res.choices[0].message.content
  )
 
  # Return the model's response object
  return res

@observe()
def find_best_painter_from(country="France"):
  response = mistral_completion(
      model="mistral-small-latest",
      max_tokens=1024,
      temperature=0.4,
      messages=[
        {
            "content": "Who is the best painter from {country}? Answer in one short sentence.".format(country=country),
            "role": "user",
        },
      ]
    )
  return response.choices[0].message.content
 
find_best_painter_from()

'Claude Monet, renowned for his role as a founder of French Impressionist painting, is often considered one of the best painters from France.'

@observe()
def find_best_painting_from(country="France"):
  response = mistral_completion(
      model="mistral-small-latest",
      max_tokens=1024,
      temperature=0.1,
      messages=[
        {
            "content": "Who is the best painter from {country}? Only provide the name.".format(country=country),
            "role": "user",
        },
      ]
    )
  painter_name = response.choices[0].message.content
  return mistral_completion(
      model="mistral-small-latest",
      max_tokens=1024,
      messages=[
        {
            "content": "What is the most famous painting of {painter_name}? Answer in one short sentence.".format(painter_name=painter_name),
            "role": "user",
        },
      ]
    )
 
find_best_painting_from("Germany")

ChatCompletionResponse(id='8bb8512749fd4ddf88720aec0021378c', object='chat.completion', model='mistral-small-latest', usage=UsageInfo(prompt_tokens=23, completion_tokens=23, total_tokens=46), created=1726597735, choices=[ChatCompletionChoice(index=0, message=AssistantMessage(content='Albrecht Dürer\'s most famous painting is "Self-Portrait at Twenty-Eight."', tool_calls=None, prefix=False, role='assistant'), finish_reason='stop')])

# Wrap streaming function with decorator
@observe(as_type="generation")
def stream_mistral_completion(**kwargs):
    kwargs_clone = kwargs.copy()
    input = kwargs_clone.pop('messages', None)
    model = kwargs_clone.pop('model', None)
    min_tokens = kwargs_clone.pop('min_tokens', None)
    max_tokens = kwargs_clone.pop('max_tokens', None)
    temperature = kwargs_clone.pop('temperature', None)
    top_p = kwargs_clone.pop('top_p', None)
 
    model_parameters = {
        "maxTokens": max_tokens,
        "minTokens": min_tokens,
        "temperature": temperature,
        "top_p": top_p
    }
    model_parameters = {k: v for k, v in model_parameters.items() if v is not None}
 
    langfuse_context.update_current_observation(
        input=input,
        model=model,
        model_parameters=model_parameters,
        metadata=kwargs_clone,
    )
 
    res = mistral_client.chat.stream(**kwargs)
    final_response = ""
    for chunk in res:
        content = chunk.data.choices[0].delta.content
        final_response += content
        yield content
 
        if chunk.data.choices[0].finish_reason == "stop":
            langfuse_context.update_current_observation(
                usage={
                    "input": chunk.data.usage.prompt_tokens,
                    "output": chunk.data.usage.completion_tokens
                },
                output=final_response
            )
            break
 
# Use stream_mistral_completion as you'd usually use the SDK
@observe()
def stream_find_best_five_painter_from(country="France"):
    response_chunks = stream_mistral_completion(
        model="mistral-small-latest",
        max_tokens=1024,
        messages=[
            {
                "content": "Who are the best five painter from {country}? Answer in one short sentence.".format(country=country),
                "role": "user",
            },
        ]
    )
    final_response = ""
    for chunk in response_chunks:
        final_response += chunk
        # You can also do something with each chunk here if needed
        print(chunk)
 
    return final_response
 
stream_find_best_five_painter_from("Spain")

The
 best
 five
 pain
ters
 from
 Spain
 are
 Diego
 Vel
áz
que
z
,
 Francisco
 G
oya
,
 P
ablo
 Pic
asso
,
 Salvador
 Dal
í
,
 and
 Joan
 Mir
ó
.






'The best five painters from Spain are Diego Velázquez, Francisco Goya, Pablo Picasso, Salvador Dalí, and Joan Miró.'

# Wrap async function with decorator
@observe(as_type="generation")
async def async_mistral_completion(**kwargs):
  kwargs_clone = kwargs.copy()
  input = kwargs_clone.pop('messages', None)
  model = kwargs_clone.pop('model', None)
  min_tokens = kwargs_clone.pop('min_tokens', None)
  max_tokens = kwargs_clone.pop('max_tokens', None)
  temperature = kwargs_clone.pop('temperature', None)
  top_p = kwargs_clone.pop('top_p', None)
 
  model_parameters = {
        "maxTokens": max_tokens,
        "minTokens": min_tokens,
        "temperature": temperature,
        "top_p": top_p
    }
  model_parameters = {k: v for k, v in model_parameters.items() if v is not None}
 
  langfuse_context.update_current_observation(
      input=input,
      model=model,
      model_parameters=model_parameters,
      metadata=kwargs_clone,
 
  )
 
  res = await mistral_client.chat.complete_async(**kwargs)
 
  langfuse_context.update_current_observation(
      usage={
          "input": res.usage.prompt_tokens,
          "output": res.usage.completion_tokens
      },
      output=res.choices[0].message.content
  )
 
  return res
 
@observe()
async def async_find_best_musician_from(country="France"):
  response = await async_mistral_completion(
      model="mistral-small-latest",
      max_tokens=1024,
      messages=[
        {
            "content": "Who is the best musician from {country}? Answer in one short sentence.".format(country=country),
            "role": "user",
        },
      ]
    )
  return response
 
await async_find_best_musician_from("Spain")

ChatCompletionResponse(id='589fa6216c5346cc984586209c693a41', object='chat.completion', model='mistral-small-latest', usage=UsageInfo(prompt_tokens=17, completion_tokens=33, total_tokens=50), created=1726597737, choices=[ChatCompletionChoice(index=0, message=AssistantMessage(content="One of the most renowned musicians from Spain is Andrés Segovia, a classical guitarist who significantly impacted the instrument's modern repertoire.", tool_calls=None, prefix=False, role='assistant'), finish_reason='stop')])

import asyncio
 
# Wrap async streaming function with decorator
@observe(as_type="generation")
async def async_stream_mistral_completion(**kwargs):
    kwargs_clone = kwargs.copy()
    input = kwargs_clone.pop('messages', None)
    model = kwargs_clone.pop('model', None)
    min_tokens = kwargs_clone.pop('min_tokens', None)
    max_tokens = kwargs_clone.pop('max_tokens', None)
    temperature = kwargs_clone.pop('temperature', None)
    top_p = kwargs_clone.pop('top_p', None)
 
    model_parameters = {
        "maxTokens": max_tokens,
        "minTokens": min_tokens,
        "temperature": temperature,
        "top_p": top_p
    }
    model_parameters = {k: v for k, v in model_parameters.items() if v is not None}
 
    langfuse_context.update_current_observation(
        input=input,
        model=model,
        model_parameters=model_parameters,
        metadata=kwargs_clone,
    )
 
    res = await mistral_client.chat.stream_async(**kwargs)
    final_response = ""
    async for chunk in res:
        content = chunk.data.choices[0].delta.content
        final_response += content
        yield content
 
        if chunk.data.choices[0].finish_reason == "stop":
            langfuse_context.update_current_observation(
                usage={
                    "input": chunk.data.usage.prompt_tokens,
                    "output": chunk.data.usage.completion_tokens
                },
                output=final_response
            )
            break
 
@observe()
async def async_stream_find_best_five_musician_from(country="France"):
    response_chunks = async_stream_mistral_completion(
        model="mistral-small-latest",
        max_tokens=1024,
        messages=[
            {
                "content": "Who are the best five musician from {country}? Answer in one short sentence.".format(country=country),
                "role": "user",
            },
        ]
    )
    final_response = ""
    async for chunk in response_chunks:
        final_response += chunk
        # You can also do something with each chunk here if needed
        print(chunk)
 
    return final_response
 
# Run the async function
await async_stream_find_best_five_musician_from("Spain")

The
 five
 most
 renown
ed
 musicians
 from
 Spain
 include
:
 Andr
és
 Seg
ov
ia
,
 Pac
o
 de
 Luc
ía
,
 En
rique
 I
gles
ias
,
 Ale
j
andro
 San
z
,
 and
 Ros
al
ía
.






'The five most renowned musicians from Spain include: Andrés Segovia, Paco de Lucía, Enrique Iglesias, Alejandro Sanz, and Rosalía.'

import pandas as pd
import json
import functools
 
 
# Sample payment transaction data
data = {
    'transaction_id': ['T1001', 'T1002', 'T1003', 'T1004', 'T1005'],
    'customer_id': ['C001', 'C002', 'C003', 'C002', 'C001'],
    'payment_amount': [125.50, 89.99, 120.00, 54.30, 210.20],
    'payment_date': ['2021-10-05', '2021-10-06', '2021-10-07', '2021-10-05', '2021-10-08'],
    'payment_status': ['Paid', 'Unpaid', 'Paid', 'Paid', 'Pending']
}
 
# Create a DataFrame from the data
df = pd.DataFrame(data)
 
# Function to retrieve payment status given a transaction ID
def retrieve_payment_status(df: data, transaction_id: str) -> str:
    if transaction_id in df.transaction_id.values:
        # Return the payment status as a JSON string
        return json.dumps({'status': df[df.transaction_id == transaction_id].payment_status.item()})
    return json.dumps({'error': 'transaction id not found.'})
 
# Function to retrieve payment date given a transaction ID
def retrieve_payment_date(df: data, transaction_id: str) -> str:
    if transaction_id in df.transaction_id.values:
        # Return the payment date as a JSON string
        return json.dumps({'date': df[df.transaction_id == transaction_id].payment_date.item()})
    return json.dumps({'error': 'transaction id not found.'})
 
# Define tools for the Mistral model with JSON schemas
tools = [
  {
      "type": "function",
      "function": {
          "name": "retrieve_payment_status",
          "description": "Get payment status of a transaction",
          "parameters": {
              "type": "object",
              "properties": {
                  "transaction_id": {
                      "type": "string",
                      "description": "The transaction id.",
                  }
              },
              "required": ["transaction_id"],
          },
      },
  },
  {
      "type": "function",
      "function": {
          "name": "retrieve_payment_date",
          "description": "Get payment date of a transaction",
          "parameters": {
              "type": "object",
              "properties": {
                  "transaction_id": {
                      "type": "string",
                      "description": "The transaction id.",
                  }
              },
              "required": ["transaction_id"],
          },
      },
  }
]
 
# Define tools for the Mistral model with JSON schemas
names_to_functions = {
  'retrieve_payment_status': functools.partial(retrieve_payment_status, df=df),
  'retrieve_payment_date': functools.partial(retrieve_payment_date, df=df)
}

@observe()
def tool_calling_check_transaction_status(id="T1001"):
 
  # Construct the initial user query message
  messages = [{"role": "user", "content": "What's the status of my transaction {id}?".format(id=id)}]
 
  # Use the Langfuse-decorated Mistral completion function to generate a tool-assisted response
  response = mistral_completion(
      model = "mistral-small-latest",
      messages = messages,
      max_tokens=512,
      temperature=0.1,
      tools = tools,
      tool_choice = "any",
  )
 
 
  messages.append(response.choices[0].message)
 
  # Extract the tool call details from the model's response
  tool_call = response.choices[0].message.tool_calls[0]
  function_name = tool_call.function.name
  function_params = json.loads(tool_call.function.arguments)
 
   # Execute the selected function with the extracted parameters
  function_result = names_to_functions[function_name](**function_params)
 
  messages.append({"role":"tool", "name":function_name, "content":function_result, "tool_call_id":tool_call.id})
 
  # Call the Langfuse-wrapped Mistral completion function again to generate a final response using the tool's result
  response = mistral_completion(
      model = "mistral-small-latest",
      max_tokens=1024,
      temperature=0.5,
      messages = messages
  )
 
  return response.choices[0].message.content
 
tool_calling_check_transaction_status("T1005")

'Your transaction T1005 is currently pending.'