Example caching doesn't work with `gr.update()`

[abidlabs]

Describe the bug

If a function returns a gr.update(), it will not work correctly with example caching. Here are a couple of failure modes:

(1) The caching does not happen at all, and an Exception is thrown

Example:

import gradio as gr

io = gr.Interface(lambda x: gr.update(visible=False), "textbox", "html", examples=["hi"], cache_examples=True).launch()

Error:

AttributeError: 'dict' object has no attribute 'startswith'

(2) Caching happens without error, but when the example is clicked, the update does not happen as expected:

Example:

import gradio as gr

io = gr.Interface(lambda x: gr.update(visible=False), "textbox", "textbox", examples=["hi"], cache_examples=True).launch()

Error:

Is there an existing issue for this?

• I have searched the existing issues

Reproduction

See above

Screenshot

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Logs

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System Info

gradio==3.3.1

Severity

serious, but I can work around it