03-01 `field()`

1

import requests 
from rich.console import Console
from dataclasses import dataclass, field
from typing import Any

@dataclass
class Agent:
    model: str = 'qwen3.5'
    base_url: str = "Enter lm studio server adress"
    api_key: str = field(default="NO_API_KEY",repr=False)
    messages: list[dict[str,Any]] = field(default_factory=list)

`api_key: str = field(default="NO_API_KEY",repr=False)`

Field is had default which like js, means if no value is entered, "use this exact value"

Here if If the user doesn't provide an api_key, use "NO_API_KEY".