Add session hash to gr request

[freddyaboulton]

Description

Being able to pull the session_hash has come up twice recently: the command+R demo and I personally wanted build a demo where I use the session hash to save some files to disk and then clean them up with unload. To get the session hash, you have to use await request.body() which is not ideal since you'd have to make your handler async and it's also not clear you have to parse the body to get the session hash.

I think this should make it easier in the future for others.

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Install Gradio from this PR

pip install https://gradio-builds.s3.amazonaws.com/f2f3f1550870a38eb150e24972c296eece8e4380/gradio-4.27.0-py3-none-any.whl

Install Gradio Python Client from this PR

pip install "gradio-client @ git+https://github.com/gradio-app/gradio@f2f3f1550870a38eb150e24972c296eece8e4380#subdirectory=client/python"

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🦄 change detected

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Add session hash to gr request

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[pngwn]

Ah this is awesome, thanks @freddyaboulton! I can think of loads of cases where this will be useful. This makes things much easier.

[freddyaboulton]

Thanks @pngwn !

[abidlabs]

Nice!