code: def setUp(self):
      super().setUp()
      self.url = "/{}/experiment/{}/metric/".format(
          Constants.API_V2, self.experiment1.id
      )
  
imports: from rest_framework import status
  from modelchimp.tests import BaseTest
  from modelchimp.enum import Constants
label_desc: Use image node_id 1 for calling the ExperimentParamApiTest obj's underlying member method code with example usage: obj.setUp() without return types