<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def get_index_models(index):
 """Return list of models configured for a named index. Args: index: string, the name of the index to look up. """

    models = []
    for app_model in get_index_config(index).get("models"):
        app, model = app_model.split(".")
        models.append(apps.get_model(app, model))
    return models