您可以使用Lambda在使用Cloudformation创建的RDS上创建Schema吗？

import boto3

def lambda_handler(event, context):
    # 获取CloudFormation事件信息
    stack_id = event['StackId']
    resource_properties = event['ResourceProperties']
    
    # 获取RDS实例信息
    rds_instance_id = resource_properties['RDSInstanceId']
    schema_name = resource_properties['SchemaName']
    
    # 创建RDS Schema
    rds_client = boto3.client('rds')
    response = rds_client.create_db_instance(
        DBInstanceIdentifier=rds_instance_id,
        MasterUsername='admin',
        MasterUserPassword='password',
        DBName=schema_name
    )
    
    # 等待RDS创建完成
    waiter = rds_client.get_waiter('db_instance_available')
    waiter.wait(DBInstanceIdentifier=rds_instance_id)
    
    return response