text: from flask import Flask
  from pf_flask_db.pf_app_model import AppModel
  from pf_flask_db.pf_app_database import app_db
  
  app = Flask(__name__)
  
  app.config["SQLALCHEMY_DATABASE_URI"] = "sqlite:///pf-flask-db-cli.sqlite"
  app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = False
  app_db.init_app(app)
  
  
  class Person(AppModel):
      id = app_db.Column(app_db.Integer, primary_key=True)
      first_name = app_db.Column(app_db.String(150), nullable=False)
      last_name = app_db.Column(app_db.String(150))
      email = app_db.Column(app_db.String(120), nullable=False)
      age = app_db.Column(app_db.Integer)
      income = app_db.Column(app_db.Float, default=0)
  
  
  @app.route('/')
  def bismillah():
      return "PF Flask DB Tutorial"
  
  
  @app.route('/create')
  def create():
      person = Person(first_name="First Name", last_name="Last Name", email="hmtmcse.com@gmail.com", age=22, income=500)
      person.save()
      response = "Data successfully Inserted"
      return response
  
  
  @app.route('/update')
  def update():
      person = Person.query.filter_by(id=1).first()
      if person:
          person.first_name = "FName Update"
          person.last_name = "LName Update"
          person.save()
      return "Data has been updated."
  
  
  if __name__ == '__main__':
      app.run(debug=True)
  