input: Write a function to create a Flask web application for a car insurance calculator. The application should have an endpoint '/calculate' that accepts a POST request with JSON input containing the user's age, gender, and car model. The function should return a calculated insurance price based on the provided data.
  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})
      
  app.run(host='0.0.0.0', port=8006)
  
  assert calculate({'age': 25, 'gender': 'male', 'car_model': 'sedan'})=={'insurance_price': 0.0}
output: 
  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})
  