title: How do I find error logs for my Python lambda function across many AWS Cloudwatch log streams?
body: <p>Let's say I have log group <code>/aws/lambda/backend</code>, which tracks logs of my Python lambda function.
  I want to debug common issues, like exceptions and time outs, and find related log entries.</p>
  <p>But the function has a lot of concurrent traffic, so there are many log streams in the log group.
  How do I find the log entries across all logs without visiting each individual log stream and perform the search?</p>