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```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, HTTPException
from pydantic import BaseModel, Field
from typing import List, Optional
from starlette.requests import Request
from starlette.responses import JSONResponse

# Define the application
app = FastAPI(title="FastAPI Pydantic v2 Micro-SaaS Boilerplate", description="A production-ready boilerplate for building micro-SaaS applications.")

# Define a Pydantic model for user data
class User(BaseModel):
    id: int = Field(..., description="The user's ID")
    name: str = Field(..., description="The user's name")
    email: str = Field(..., description="The user's email")

# Define a Pydantic model for error responses
class ErrorResponse(BaseModel):
    error: str = Field(..., description="The error message")

# Define a route for getting all users
@app.get("/users", response_model=List[User])
async def get_users():
    """
    Get all users.
    
    Returns:
    A list of

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