23 lines
554 B
Markdown
23 lines
554 B
Markdown
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<!-- Do not edit this file. It is automatically generated by API Documenter. -->
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[Home](./index.md) > [puppeteer](./puppeteer.md) > [Page](./puppeteer.page.md) > [emulateVisionDeficiency](./puppeteer.page.emulatevisiondeficiency.md)
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## Page.emulateVisionDeficiency() method
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<b>Signature:</b>
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```typescript
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emulateVisionDeficiency(type?: VisionDeficiency): Promise<void>;
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```
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## Parameters
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| Parameter | Type | Description |
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| --- | --- | --- |
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| type | VisionDeficiency | |
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<b>Returns:</b>
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Promise<void>
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