code: def user_save(self):
          
          if not self.cur_user:
              return
  
          username = self.user_username_le.text()
          first = self.user_first_le.text()
          last = self.user_last_le.text()
          email = self.user_email_le.text()
          self.cur_user.username = username
          self.cur_user.first_name = first
          self.cur_user.last_name = last
          self.cur_user.email = email
          self.cur_user.save()
docs: Save the current user
  
          :returns: None
          :rtype: None
          :raises: None