@@ -0,0 +1,1311 @@
+from http import HTTPStatus%0Afrom typing import Tuple%0Afrom typing import Union%0A%0Afrom flask import Flask%0Afrom flask import jsonify%0Afrom flask.templating import render_template%0Afrom flask.views import View%0Afrom flask.wrappers import Response%0A%0A%0Aapp = Flask(__name__)%0A%0A%0A@app.route(%22/%22)%0Adef hello_world() -%3E str:%0A    return %22%3Cp%3EHello, World!%3C/p%3E%22%0A%0A%0A@app.route(%22/json%22)%0Adef hello_world_json() -%3E Response:%0A    return jsonify(%7B%22response%22: %22Hello, World!%22%7D)%0A%0A%0A@app.route(%22/template%22)%0A@app.route(%22/template/%3Cname%3E%22)%0Adef return_template(name: Union%5Bstr, None%5D = None) -%3E str:%0A    return render_template(%22index.html%22, name=name)%0A%0A%0A@app.errorhandler(HTTPStatus.INTERNAL_SERVER_ERROR)%0Adef error_500(e) -%3E Tuple%5Bstr, int%5D:%0A    return %22%3Cp%3ESorry, we are having problems%3C/p%3E%22, HTTPStatus.INTERNAL_SERVER_ERROR%0A%0A%0A@app.before_request%0Adef before_request() -%3E None:%0A    app.logger.debug(%22Executing a sample before_request function%22)%0A    return None%0A%0A%0Aclass RenderTemplateView(View):%0A    def __init__(self: %22RenderTemplateView%22, template_name: str) -%3E None:%0A        self.template_name = template_name%0A%0A    def dispatch_request(self: %22RenderTemplateView%22) -%3E str:%0A        return render_template(self.template_name)%0A%0A%0Aapp.add_url_rule(%0A    %22/about%22,%0A    view_func=RenderTemplateView.as_view(%22about_page%22, template_name=%22about.html%22),%0A)%0A

add example code for testing typing tools