def METHOD_NAME(make_stubber, monkeypatch):
    dyn_stubber = make_stubber(dynamo_batching.dynamodb.meta.client)
    item_count = 5
    request_keys = {
        'test-table1': {
            'Keys': [{'test': {'S': f'test-{index}'}} for index in range(item_count)]},
        'test-table2': {
            'Keys': [{'test': {'S': f'test-{index}'}} for index in range(item_count)]}
    }
    response_items = {
        'test-table1':
            [{'test': {'S': f'test-{index}' for index in range(item_count)}}],
        'test-table2':
            [{'test': {'S': f'test-{index}' for index in range(item_count)}}],
    }
    monkeypatch.setattr(time, 'sleep', lambda x: None)
    dyn_stubber.stub_batch_get_item(request_keys, unprocessed_keys=request_keys)
    dyn_stubber.stub_batch_get_item(request_keys, response_items=response_items)
    got_data = dynamo_batching.do_batch_get(request_keys)
    for key in request_keys:
        assert got_data[key] == response_items[key]