title: AttributeError: module 'google.cloud.monitoring_v3.types' has no attribute 'MetricDescriptor'
body: <p>I am running a script to create gpu metrics on gcp and getting the following errors:</p>
  <pre class="lang-bash prettyprint-override"><code>AttributeError: 'MetricServiceClient' object has no attribute 'project_path'
  
  AttributeError: module 'google.cloud.monitoring_v3.types' has no attribute 'MetricDescriptor'
  </code></pre>