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```python
# AI Dev Tool: FastAPI Pydantic v2 Micro-SaaS Template
# ================================================
# This is a production-ready developer code asset for building high-performance Micro-SaaS applications
# using FastAPI and Pydantic v2. It includes a basic API structure, request and response models,
# and error handling.

from fastapi import FastAPI, HTTPException
from pydantic import BaseModel
from typing import List, Optional

# Initialize the FastAPI application
app = FastAPI()

# Define the request model for creating a new resource
class CreateResourceRequest(BaseModel):
    """Request model for creating a new resource"""
    name: str
    description: Optional[str]

# Define the response model for creating a new resource
class CreateResourceResponse(BaseModel):
    """Response model for creating a new resource"""
    id: int
    name: str
    description: Optional[str]

# Define the request model for updating an existing resource
class UpdateResourceRequest(BaseModel):
    """Request model for updating an existing resource"""
    name: Optional[str]
    description: Optional[str]

# Define the response model for updating an existing resource
class UpdateResourceResponse(BaseModel):
    """Response model for updating an existing resource"""

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