improve dict check in py

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1. Is this request related to a challenge you're experiencing? Tell me about your story.

now a lot of type is bare dict

rg ": dict\)" --glob "*.py" | wc -l
165

use pydantic can reduce many dup pattern like

if not field:
    raise ValueError...

example #24837

2. Additional context or comments

https://lexi-lambda.github.io/blog/2019/11/05/parse-don-t-validate/

3. Can you help us with this feature?

• I am interested in contributing to this feature.