Now for the fun part! Let's write a function that your OpenAI assistant can actually use! Assuming you completed the previous section, and you provided a valid API key, you are one step closer to creating incredibly powerful assistants.
Create a Greet Function
The Python Func Runner framework tries to follow the same decorator-based design that you may see in other Python web frameworks. Any function decorated with @app.function will be registered with your application and available for your assistant to use.
# main.py
from dotenv import load_dotenv
from funcrunner.app import FuncRunnerApp
load_dotenv()
app = FuncRunnerApp()
@app.function
def greet(name: str):
"""generates a greeting with a given name"""
return f"Hello, {name}"
app.run()
Restart your application by running the following command:
python main.py
You should see an output similar to the following:
When you provide an assistant_id when initializing the Func Runner Application, the framework will inspect the registered functions and look at the method signature and docstring to generate a function definition to attach to your assistant. This allows you to develop without worrying about manually configuring assistants.
Restart your application by running the following command:
python main.py
You should see an output similar to the following:
[info ] Registering function: 'greet'
[info ] Starting Func Runner application...
[info ] Available functions: greet
[info ] Updating assistant functions... assistant_id=asst_tliJoe0qJpbcZJsODeolbVJF
[info ] Generating function spec for function: 'greet'
[debug ] Generated function spec for function: 'greet' spec={'type': 'function', 'function': {'name': 'greet', 'description': 'generates a greeting with a given name', 'parameters': {'type': 'object', 'properties': {'name': {'type': 'string', 'description': 'The name parameter.'}}, 'required': ['name'], 'additionalProperties': False}, 'strict': True}}
[info ] Finished updating assistant functions... assistant_id=asst_tliJoe0qJpbcZJsODeolbVJF
If you go look at your OpenAI Assistant in the OpenAI Platform you will see that your assistant has been automatically updated with the correct function definition.
