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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def index():
 """Return information about each type of resource and how it can be accessed."""

    classes = []
    with app.app_context():
        classes = set(current_app.class_references.values())
    if _get_acceptable_response_type() == JSON:
        meta_data = {}
        for cls in classes:
            meta_data[cls.endpoint()] = {
                'link': '/' + cls.endpoint(),
                'meta': '/' + cls.endpoint() + '/meta'
                }
        return jsonify(meta_data)
    else:
        return render_template('index.html', classes=classes)