class Path(Param):
    in_ = ParamTypes.path

    def __init__(
        self,
        default: Any = ...,
        *,
        alias: Optional[str] = None,
        title: Optional[str] = None,
        description: Optional[str] = None,
        gt: Optional[float] = None,
        ge: Optional[float] = None,
        lt: Optional[float] = None,
        le: Optional[float] = None,
        min_length: Optional[int] = None,
        max_length: Optional[int] = None,
        regex: Optional[str] = None,
        example: Any = Undefined,
        examples: Optional[Dict[str, Any]] = None,
        deprecated: Optional[bool] = None,
        include_in_schema: bool = True,
        **extra: Any,
    ):
        assert default is ..., "Path parameters cannot have a default value"

from typing import Optional

import uvicorn as uvicorn
from fastapi import FastAPI, HTTPException
from starlette import status

app = FastAPI()

db = {
    "alice": "alice",
    "bob": "bob",
}


@app.get("/api/v1/details")
async def get_user_details(group: Optional[str] = None):
    return db


@app.get("/api/v1/details/{userName}")
async def get_user_details(userName: str, group: Optional[str] = None):
    if user := db.get(userName):
        return user

    raise HTTPException(status_code=status.HTTP_404_NOT_FOUND)


if __name__ == "__main__":
    uvicorn.run(app)