class_docstr: A custom user manager to deal with emails as unique identifiers for auth
  instead of usernames. The default that's used is "UserManager"
class_docstr_tok: ["A","custom","user","manager","to","deal","with","emails","as","unique","identifiers","for","auth","instead","of","usernames",".","The","default","that","'s","used","is","``","UserManager","''"]
code: def create_superuser(self, email, password, **extra_fields):
      extra_fields.setdefault("is_staff", True)
      extra_fields.setdefault("is_superuser", True)
      extra_fields.setdefault("is_active", True)
  
      if extra_fields.get("is_staff") is not True:
          raise ValueError("Superuser must have is_staff=True.")
      if extra_fields.get("is_superuser") is not True:
          raise ValueError("Superuser must have is_superuser=True.")
      return self._create_user(email, password, **extra_fields)
  
file_path: modelchimp/modelchimp/models/user.py
imports: from django.db import models
  from django.conf import settings
  from django.dispatch import receiver
  from django.utils.translation import ugettext_lazy
  from django.contrib.auth.models import BaseUserManager, AbstractBaseUser, PermissionsMixin
  from django.db.models.signals import post_save
  from rest_framework.authtoken.models import Token
label_desc: Use image node_id 2 for calling the MyUserManager obj's underlying member method code with example usage: obj.create_superuser(email, password) and returns: self