chore: update type init

[poyoho]

Description

use other ts syntax to resolve init issues #9569 (comment)

Additional context

don't need to init array to kept the dts run well

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What is the purpose of this pull request?

• Bug fix
• New Feature
• Documentation update
• Other

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• Read the Contributing Guidelines.
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[bluwy]

Cool. Didn't know this syntax exists.