Function createServerRunner

createServerRunner(input): CreateServerRunnerOutput
Creates the runWithAmplifyServerContext function to run Amplify server side APIs in an isolated request context.
Parameters
- input: CreateServerRunnerInput
  The input used to create the runWithAmplifyServerContext function.
Returns CreateServerRunnerOutput
An object that contains the runWithAmplifyServerContext function.
Remarks
This function should be called only once; you can use the returned runWithAmplifyServerContext across your codebase.

Example
```
import { createServerRunner } from '@aws-amplify/adapter-nextjs';
import config from './amplifyconfiguration.json';

export const { runWithAmplifyServerContext } = createServerRunner({ config })
```