getUniqueId missing documentation

[jamesgpearce]

Describe the bug

as title

Your Example Website or App

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Steps to Reproduce the Bug or Issue

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Expected behavior

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Screenshots or Videos

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Platform

• OS: [e.g. macOS, Windows, Linux]
• Browser: [e.g. Chrome, Safari, Firefox]
• Version: [e.g. 91.1]

Additional context

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