code: def get_existing_pipelines(self):
          
          url = "{0}/applications/{1}/pipelineConfigs".format(API_URL, self.app_name)
          resp = requests.get(url, verify=GATE_CA_BUNDLE, cert=GATE_CLIENT_CERT)
          assert resp.ok, 'Failed to lookup pipelines for {0}: {1}'.format(self.app_name, resp.text)
  
          return resp.json()
docs: Get existing pipeline configs for specific application.
  
          Returns:
              str: Pipeline config json