new_contents: import uuid
  
  from datetime import datetime
  
  from django.db import models
  from django.contrib.auth.models import User
  from django.utils import timezone
  
  from .profile import UserProfile
  
  
  class GroupManager(models.Manager):
      """
      This is the manager class for the group/friend system for creating users and helpful
      functions in general.
      """
      def total_matches():
          matches = Match.objects.all()
          return len(matches)
  
      def get_matches(user, deny=False):
          # get matches for the match page
          matches = Match.objects.filter(user=user, deny=deny)
          return matches
  
      def check_match(user, restaurant):
          return Match.objects.filter(user=user, restaurant=restaurant)
  
      def add_match(user, restaurant, deny=False):
          new_match = Match(user=user, restaurant=restaurant, deny=deny)
          new_match.save()
  
  class Group(models.Model):
      """
      A match is a bi-directional association between a restaurant and user who
      wants the association (match).
      """
      user_one = models.ForeignKey(User, related_name="group_user_one")
      user_two = models.ForeignKey(User, related_name="group_user_two")
      user_three = models.ForeignKey(User, related_name="group_user_three")
      user_four = models.ForeignKey(User, related_name="group_user_four")
  
subject: add group/groupmanager model