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`/docs/rest-api/sdk/drains/update-an-existing-drain` does not exist. Similar pages:

- [Update an existing Drain (Vercel SDK)](/docs/rest-api/sdk/drains/update-an-existing-drain.md): PATCH /v1/drains/{id} Update the configuration of an existing drain. Categorydrains SDK@vercel/sdk (npm i @vercel/sdk)
- [Update an existing Drain](/docs/rest-api/drains/update-an-existing-drain.md): PATCH /v1/drains/{id} Update the configuration of an existing drain. Categorydrains AuthenticationBearer token required
- [Create a new Drain (Vercel SDK)](/docs/rest-api/sdk/drains/create-a-new-drain.md): POST /v1/drains Create a new Drain with the provided configuration. Categorydrains SDK@vercel/sdk (npm i @vercel/sdk)
- [Delete a drain (Vercel SDK)](/docs/rest-api/sdk/drains/delete-a-drain.md): DELETE /v1/drains/{id} Delete a specific Drain by passing the drain id in the URL. Categorydrains SDK@vercel/sdk (npm i @vercel/sdk)

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