human
Complete this python program:
def create_app():
assistant
#Here is the Python program you requested.

    """Creates the pygal test web app
    """
    app = Flask(__name__)
    @app.before_request
    def before_request():
        if request.args.get('etree'):
            etree.to_etree()
        elif request.args.get('lxml'):
            etree.to_lxml()
    def _random(data, order):
        max = (10 ** order)
        min = (10 ** random.randrange(0, order))
        series = []
        for i in range(random.randrange(1, 10)):
            values = [(random_value(((- max), min)[random.randrange(0, 2)], max), random_value(((- max), min)[random.randrange(0, 2)], max)) for i in range(data)]
            series.append((random_label(), values, {}))
        return series
    def _random_series(type, data, order):
        max = (10 ** order)
        min = (10 ** random.randrange(0, order))
        with_secondary = bool(random.randint(0, 1))
        series = []
        for i in range(random.randrange(1, 10)):
            if (type == 'Pie'):
                values = random_value(min, max)
            elif (type == 'XY'):
                values = [(random_value(((- max), min)[random.randrange(0, 2)], max), random_value(((- max), min)[random.randrange(0, 2)], max)) for i in range(data)]
            else:
                values = [random_value(((- max), min)[random.randrange(1, 2)], max) for i in range(data)]
            config = {'secondary': (with_secondary and bool(random.randint(0, 1)))}
            series.append((random_label(), values, config))
        return series
    from .tests import get_test_routes
    links = get_test_routes(app)
    @app.route('/')
    def index():
        return render_template('index.jinja2', styles=styles, parametric_styles=parametric_styles, parametric_colors=('#ff5995', '#b6e354', '#feed6c', '#8cedff', '#9e6ffe'), links=links, charts_name=pygal.CHARTS_NAMES)
    @app.route('/svg/<type>/<series>/<config>')
    def svg(type, series, config):
        graph = get(type)(pickle.loads(b64decode(str(config))))
        for (title, values, serie_config) in pickle.loads(b64decode(str(series))):
            graph.add(title, values,...