Create a Gradio app from an openapi spec (#11526)
* changes
* changes
* changes
* demo
* changes
* changes
* add changeset
* fixes
* regex
* changes
* changes
* changes
* changes
* changes
* files
* handle errors gracefully
* changes
* simplify
* changes
* changes
* notebook
* fix tests
* fixes
* fix install message
* fix
* rename
* changes
* enum
* changes
* notebook
* added a tutorial
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