public com.google.protobuf.Timestamp.Builder getValidAfterTimeBuilder() {
        return getValidAfterTimeFieldBuilder().getBuilder();
      }
<pre>
An absolute time at which resources may be created.
</pre>

<code>.google.protobuf.Timestamp valid_after_time = 4;</code>
java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/QueuedResource.java