Fix block_object typo and refactor to use static type

[longngn]

Pull Request Guidelines

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They are strictly guidelines to help manage expectations.

PR preparation

Run make pr-prep from the root of the repository to run formatting, linting and tests.

Should this be an issue instead

• is it a convenience method? (no new functionality, streamlines some use case)
• exposes a previously private type, const, method, etc.
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[longngn]

@nlopes Hi, could you review this PR? The mrkdown typo is pretty severe and could affect many use cases. Thanks!

[kanata2]

Thanks!

[kanata2]

@longngn I overlooked API breaking changes. So I reverted it, and will submit new PR which fixes a typo mrkdown.