Neil Ramsay

I'll fix up the Flake8 failures, and also I need to test credential expiry. NR

@stevemac007 are you the right person to review this? NR

I've checked the expiry of credentials (as stored in `~/.aws/credentials`), and found that they don't automatically refresh (prompt from _aws-google-auth_), so I may need to investigate internal caching.

Please note: - ~I have not built the documentation, so there may need to be some formatting updates~ - I'm not 100% clear on how to format the type hints...

> 6. Ability to return a list of “transformed” values > Would be similar to the initial behavior of the Fn::ForEach intrinsic function where instead of returning a key-value pair...

As an optimisation to prevent shells having to generate completions each startup, I recommend a change to the proposal for `bash`: ```bash #! /bin/bash sam completion > ${XDG_DATA_HOME:-~/.local/share}/bash-completion/completions/sam ``` This...