How to move an #hapi plugin out to its own separate file - node.js

Question

I am upgrading the Node version of my system and have got to the point of updating hapi to #hapi/hapi. I am using Node version 14.0.0 and #hapi/hapi version 20.2.2
I've written a simple server with just one route, which works perfectly:
'use strict';
const Hapi = require('#hapi/hapi');
const init = async () => {
const server = Hapi.server({
port: 3000,
host: 'localhost'
});
// await server.register(require('./plugins'))
server.route({
method: 'GET',
path: '/',
handler: (request, h) => {
return 'Hello World!';
}
});
await server.start();
console.log(`'Test' server running on Node ${process.version} at:`, server.info.uri);
};
init();
However, if I uncomment the server.register call and comment out the server.route code I get an error. The file ./plugins/index.js looks like this:
'use strict';
const report = {
name: 'report',
version: '1.0.0',
register: async function (server, options) {
server.route({
method: 'GET',
path: '/',
handler: (request, h) => {
return 'Hello World!';
}
});
}
}
The error I am getting from the #hapi server is this:
(node:4793) UnhandledPromiseRejectionWarning: Error: Invalid plugin options {
"plugin": {
"register" [1]: -- missing --
}
}
[1] "plugin.register" is required
It looks like a very simple issue, but I cannot find anything relatively modern on the Internet to help me out. Please can someone just point me in the right direction? - thank you.
EDITED: I have moved #hapi/hapi up to the latest version, 21.1.0, and Node up to 18.12.1 but still get the same message.