import os
from pydantic import BaseModel
from typing import Optional

class Settings(BaseModel):
    """Manages application settings and configurations."""
    REAL_LLM_API_URL: Optional[str] = None
    REAL_LLM_API_KEY: Optional[str] = None

def get_settings() -> Settings:
    """
    Returns an instance of the Settings object by loading from environment variables.
    """
    return Settings(
        REAL_LLM_API_URL=os.getenv("REAL_LLM_API_URL"),
        REAL_LLM_API_KEY=os.getenv("REAL_LLM_API_KEY"),
    )