我们可以在无服务器的s3对象上使用cloudwatch事件吗？

I want to know if we can create a cloudwatch event that triggered on S3 bucket every time that a change occurs on S3. For example, if a file is uploaded on s3 we recieve an email. I am using serverless framework, i found on the serverless documentation only stuff related to ec2, but not much things on s3. So please if anyone knows how to use cloudwatch with s3 i am all earsI want to know if we can create a cloudwatch ev