input: 
  def create_user_model(app_name: str) -> str:
      """
      Given the name of a Django application, this function returns a string 
      representation of the Django model class 'User' with fields for name, 
      address, and email.
      
      >>> create_user_model('myapp')
      'from django.db import models\\n\\nclass User(models.Model): \\n    name = models.CharField(max_length=100) \\n    address = models.CharField(max_length=100)\\n    email = models.EmailField(max_length=100)'
      """
      return f"from django.db import models\n\nclass User(models.Model): \n    name = models.CharField(max_length=100) \n    address = models.CharField(max_length=100)\n    email = models.EmailField(max_length=100)"
  
output:     return f"from django.db import models\n\nclass User(models.Model): \n    name = models.CharField(max_length=100) \n    address = models.CharField(max_length=100)\n    email = models.EmailField(max_length=100)"