StandardRetrierFn configures a new aws sdk client with a retrier that ensures function code and configuration are updated properly AWS is eventually-consistent, so if you update function code immediately after function configuration because the function is still updating This retryer will appropriately handle the AWS failure (i.e.

WaitForFunctionChanges waits for AWS to finalize changes for a function (configuration or code) See https://docs.aws.amazon.com/lambda/latest/dg/functions-states.html#functions-states-updating During my live tests, this process took <30s.