code: def test_parameters_structure(self):
      instance = self.model_class.objects.get(
          experiment_id=self.experiment1.experiment_id
      )
      self.assertTrue(isinstance(instance.parameters, dict))
  
file_path: modelchimp/modelchimp/tests/models/test_experiment_model.py
imports: from modelchimp.tests import BaseTest
  from modelchimp.factories.factory_experiment import ExperimentFactory
  from modelchimp.models.experiment import Experiment
label_desc: Use image node_id 6 for calling the ExperimentModelTest obj's underlying member method code with example usage: obj.test_parameters_structure() without return types