code: def set_trial(self):
      self.is_trial_user = True
  
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 4 for calling the User obj's underlying member method code with example usage: obj.set_trial() without return types