docs: def get_user_model():
      """
      Returns the user model to use at runtime.
      :return: User or custom user
      """
      if DJANGO_VERSION >= (1, 5):
          from django.contrib.auth import get_user_model
  
          return get_user_model()  # NOQA
      else:
          from django.contrib.auth.models import User  # NOQA
          return User