This can be used to test if your contribution will work. Please note that you will have to upload your changes as an npm package, and test them here.

DataStore2test.ts

import * as DataStore2 from "@rbxts/PACKAGETESTNAME";
import { Players } from "@rbxts/services";

DataStore2.Combine('main', 'test', 'test2')
DataStore2.ClearCache()
DataStore2.PatchGlobalSettings({
	SavingMethod: 'OrderedBackups'
})

Players.PlayerAdded.Connect(async player => {
	const DataStore = DataStore2('test', player)
	
	DataStore.Get(0)
	DataStore.Set(0);
	DataStore.Save();
	DataStore.Update(oldValue => {
		if (!typeIs(oldValue, 'number')) {
			return 1;
		}

		return oldValue + 1
	});
	/* Cannot test this because you cannot have a `Get` call AND a `GetAsync` call AND a `GetTable` AND a `GetTableAsync`. TEST FOUR TIMES, once with each method.
	DataStore.GetTable({
		coins: 500
	})
	*/
	DataStore.Increment(20);
	DataStore.OnUpdate(value => {
		print('DataStore updated to ' + value);
	})
	DataStore.SetBackup(5, 'DATASTORES DOWN');
	if (DataStore.IsBackup()) {
		print('Backup DataStore.')
	}
	DataStore.ClearBackup()
	DataStore.BeforeInitialGet(dataValue => {
		print('Before initial get: ' + dataValue)

		return dataValue
	})
	DataStore.BeforeSave(dataValue => {
		print('Before initial save: ' + dataValue)

		return dataValue
	})
	DataStore.AfterSave(value => {
		print('Saved value ' + value);
	})
	/** Cannot test this because you cannot have a `Get` call AND a `GetAsync` call AND a `GetTable` AND a `GetTableAsync`. TEST FOUR TIMES, once with each method.
	DataStore.GetAsync()
		.then(() => {
			print('Got it!');
		})
		.catch((err: unknown) => {
			print('Failed with error ' + err);
		})
	*/
	
	/** Cannot test this because you cannot have a `Get` call AND a `GetAsync` call AND a `GetTable` AND a `GetTableAsync`. TEST FOUR TIMES, once with each method.
	DataStore.GetTableAsync({ coins: 500 })
		.then(data => {
			print('Retrieved with data: ' + data)
		})
	*/
	
	DataStore.IncrementAsync(5)
		.then(() => print('Saved!'));

	DataStore2.SaveAll(player);
})