@app.post("/todos")
def create_todo(todo: Annotated[Todo, Body(
 openapi_examples={
 "example1": {
 "summary": "A simple todo example",
 "description": "A simple todo example with title and completed status",
 "value": {
 "title": "Buy groceries",
 "completed": False
 }
 },
 "example2": {
 "summary": "A tagged todo example",
 "description": "A todo example with a tag",
 "value": {
 "title": "Read a book",
 "completed": True,
 "tag": "leisure"
 }}
 })]
 ) -> str: 
 
 return "test" 

 "requestBody": {
 "content": {
 "application/json": {
 "schema": {
 "$ref": "#/components/schemas/Todo"
 },
 "examples": {
 "example1": {
 "summary": "A simple todo example",
 "description": "A simple todo example with title and completed status",
 "value": {
 "title": "Buy groceries",
 "completed": false
 }
 },
 "example2": {
 "summary": "A tagged todo example",
 "description": "A todo example with a tag",
 "value": {
 "title": "Read a book",
 "completed": true,
 "tag": "leisure"
 }
 }
 }
 }
 },
 "required": true
 },

from typing import Optional, Annotated
from pydantic import BaseModel
from aws_lambda_powertools.event_handler.openapi.params import Body
from aws_lambda_powertools.event_handler import APIGatewayRestResolver
from aws_lambda_powertools.utilities.typing import LambdaContext
app = APIGatewayRestResolver(enable_validation=True) 
class Todo(BaseModel): 
 title: str
 completed: bool
 tag: Optional[str] = None
@app.post("/todos")
def create_todo(todo: Annotated[Todo, Body(
 openapi_examples={
 "example1": {
 "summary": "A simple todo example",
 "description": "A simple todo example with title and completed status",
 "value": {
 "title": "Buy groceries",
 "completed": False
 }
 },
 "example2": {
 "summary": "A tagged todo example",
 "description": "A todo example with a tag",
 "value": {
 "title": "Read a book",
 "completed": True,
 "tag": "leisure"
 }}
 })]
 ) -> str: 
 
 return "test" 
def lambda_handler(event: dict, context: LambdaContext) -> dict:
 return app.resolve(event, context)
if __name__ == "__main__":
 # generate openapi.json
 openapi_schema = app.get_openapi_json_schema()
 with open("openapi.json", "w") as f:
 f.write(openapi_schema)