from pydantic import BaseModel
from typing import Optional, List

class UserRegister(BaseModel):
    username: str
    password: str

class UserLogin(BaseModel):
    username: str
    password: str

class Token(BaseModel):
    access_token: str
    token_type: str
    username: str
    role: str

class ServerAccess(BaseModel):
    username: str
    server_name: str

class ServerAccessList(BaseModel):
    users: List[dict]