code: def testTFXHttpRequest(self):
      req = telemetry_utils.TFXHttpRequest(
          http=http.build_http(),
          postproc=None,
          uri="http://example.com",
      )
      self.assertContainsInOrder(
          ["tfx/", "client_context:tfxpipeline;"],
          req.headers["user-agent"],
      )
  
file_path: tfx/tfx/utils/telemetry_utils_test.py
imports: import sys
  from googleapiclient import http
  import tensorflow
  from tfx import version
  from tfx.utils import telemetry_utils
label_desc: Use image node_id 3 for calling the TelemetryUtilsTest obj's underlying member method code with example usage: obj.testTFXHttpRequest() without return types