input: def create_django_app_and_user_model():
      """Create a Django application with a model that stores the name, address, and email of a user.
      The function should define a User model with the fields 'name', 'address', and 'email'.
      It should then perform the necessary migrations.
      
      Example:
      >>> create_django_app_and_user_model()
      # Output: 
      # create Django app
      django-admin startproject myapp
  
      # create user model
      from django.db import models
  
      class User(models.Model): 
          name = models.CharField(max_length=100) 
          address = models.CharField(max_length=100)
          email = models.EmailField(max_length=100)
  
      # migrate models
      python manage.py makemigrations
      python manage.py migrate
      """
output:     import os
      from django.db import models
  
      # Create Django app
      os.system("django-admin startproject myapp")
  
      # Change directory to the newly created app
      os.chdir("myapp")
  
      # Create user model
      class User(models.Model):
          name = models.CharField(max_length=100)
          address = models.CharField(max_length=100)
          email = models.EmailField(max_length=100)
  
      # Perform migrations
      os.system("python manage.py makemigrations")
      os.system("python manage.py migrate")