Results 5 issues of Mikhail Modin

It'll be great to add -e NAME=value(for example) flag to `cargo run` for set environment variables. Setting environment variables is platform/shell dependent and required additional steps from user. Simplest use...

Command-run
C-enhancement
A-environment-variables
S-needs-team-input

It would be nice to have a flag (something like `--wait`) to wait for serial port to appear in the system. I can make a PR if you are ready...

CLI
feature request

Can we add a semicolon at the end if something is added in not to the end of function? for example ``` fn x() { bar(); //

S-unactionable
C-enhancement

### Describe the bug I don't see StartLiveTail and all other live tail operations and structs in generated code, but it's [defined in the model](https://github.com/awslabs/aws-sdk-rust/blob/d7b8af5703e87dbe00b5b15111ad5212f27c6737/aws-models/cloudwatch-logs.json#L8957C39-L8957C52). What need to be done...

bug
p3

I want to bring back #287. I stumbled on it, and I think it has to be mentioned in the documentation and an example of writing HTTP server with state...