text: from werkzeug.wrappers import UserAgentMixin
  from . import db 
  from flask_login import UserMixin
  from sqlalchemy.sql import func
  
  class Note(db.Model):
      id=db.Column(db.Integer, primary_key=True)
      data=db.Column(db.String(10000))
      date=db.Column(db.DateTime(timezone=True),default=func.now())
      user_id=db.Column(db.Integer, db.ForeignKey('user.id'))
  
  
  class User(db.Model,UserMixin):
      id=db.Column(db.Integer, primary_key=True)
      email=db.Column(db.String(150), unique=True)
      password=db.Column(db.String(150))
      first_name=db.Column(db.String(150))
      notes=db.relationship('Note')