main.py

from fastapi import FastAPI, Query
import os
from typing import Any, Optional

app = FastAPI(
    title="Test"
)


@app.get("/")
def root(
    show_info: Optional[str] = Query(
        False,
        description='True/False depending your needs, gets average CPU load value',
        regex='^(True|False)$')
) -> Any:
    result: Dict[Any, Any] = {
        "message": "Your first endpoint is working"
    }

    if cpu_load == 'True':
        result["cpu_average_load"] = os.getloadavg()
        result["cpu"] = os.cpu_count()
        
    return result