code: def get_submitted_by(self, obj):
      return (
          obj.user.profile.first_name + " " + obj.user.profile.last_name
      )
  
file_path: modelchimp/modelchimp/serializers/experiment.py
imports: from rest_framework import serializers
  from modelchimp.models.experiment import Experiment
  from django.utils import timezone
label_desc: Use image node_id 3 for calling the ExperimentSerializer obj's underlying member method code with example usage: obj.get_submitted_by(obj) and returns: unknown