input: def create_car_insurance_web_app() -> flask.Flask:
      """
      Create a Python web application for a car insurance calculator. The application should have a page where the user can input the data (e.g age, gender, car model, etc) and should return a calculated insurance price.
      
      >>> app = create_car_insurance_web_app()
      >>> from flask import json
      >>> client = app.test_client()
      >>> response = client.post('/calculate', json={'age': 25, 'gender': 'male', 'car_model': 'sedan'})
      >>> response.get_json()['insurance_price']
      0.0
      """
      import flask
      from flask import request, jsonify
  
      # Creating the application app
      app = flask.Flask(__name__)
  
      @app.route('/calculate', methods=['POST'])
      def calculate():
          # Get the input data from the user
          data = request.get_json()
  
          age = data['age']
          gender = data['gender']
          car_model = data['car_model']
  
          # Calculate the insurance price
          # ...
          insurance_price = 0.00
  
          # Return the calculated insurance price in JSON format
          return jsonify({'insurance_price': insurance_price})
  
      return app
output:     if age < 18:
          insurance_price = 1000.00
      elif age < 25:
          insurance_price = 750.00
      else:
          insurance_price = 500.00
  
      if gender == 'female':
          insurance_price *= 0.9
  
      if car_model == 'sports':
          insurance_price *= 1.5
      elif car_model == 'luxury':
          insurance_price *= 1.2
  
      return jsonify({'insurance_price': insurance_price})