* [python] Support aliasing of API keys
* Support for aliasing and prefix
* Make more realistic usage
* Regenerate
* Document alias in generated code
* Support override of aliased keys
* Use diferent id and name for api keys
* ensure up-to-date
* Simple example without x-auth-id-alias
* regenerate docs
* Regenerate
* Provide separate spec for x-auth-id-alias
* Apply suggestions from code review
* regenerated
