⚡ Live Sandbox: AI Dev Tool: Opus 55 is good

📝 Editable Code Sandbox

```python
# AI Dev Tool: FastAPI Pydantic v2 Micro-SaaS Boilerplate
# Description: A production-ready boilerplate for building micro-SaaS applications using FastAPI and Pydantic v2.

from fastapi import FastAPI, Depends, HTTPException
from fastapi.security import OAuth2PasswordBearer, OAuth2PasswordRequestForm
from pydantic import BaseModel, Field
from typing import Optional
from datetime import datetime, timedelta
from jose import jwt, JWTError
from passlib.context import CryptContext

# Define the FastAPI application
app = FastAPI()

# Define the Pydantic models
class User(BaseModel):
    """User model"""
    id: int = Field(..., description="User ID")
    username: str = Field(..., description="Username")
    email: str = Field(..., description="Email")
    full_name: Optional[str] = Field(None, description="Full name")
    disabled: Optional[bool] = Field(False, description="Disabled")

class Item(BaseModel):
    """Item model"""
    id: int = Field(..., description="Item ID")
    title: str = Field(..., description="Title")
    description: Optional[str] = Field(None, description="Description

🖥️ Interactive Execution Terminal Console

⚡ Ready! Click ▶️ Run Code to execute code in browser terminal...