#!/usr/bin/env python
import boto3
import pymysql

cliente = boto3.client('rds',region_name='us-east-2')
token = cliente.generate_db_auth_token('endpoint.rds.amazonaws.com',3306,'usuarioiam')
ssl = {'ca': 'rds-combined-ca-bundle.pem'}
conexao = pymysql.connect(host='endpoint.rds.amazonaws.com',port=3306,user='usuarioiam',password=token, ssl=ssl)