How to have static IP address in AWS Amplify App

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- [X] I have checked to see if my question is addressed in the [FAQ](https://github.com/aws-amplify/amplify-hosting/blob/master/FAQ.md).
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### App Id

App is already hosted

### AWS Region

us-east-1

### Amplify Hosting feature

Build settings, Frontend builds

### Question

I have site in react js on AWS Amplify and now I am adding a payment gateway, but payment company asking for the static IP address, so how to create static IP address in AWS Amplify App