@java.lang.Override
      public com.google.protobuf.TimestampOrBuilder getValidAfterTimeOrBuilder() {
        if ((startTimingConstraintsCase_ == 4) && (validAfterTimeBuilder_ != null)) {
          return validAfterTimeBuilder_.getMessageOrBuilder();
        } else {
          if (startTimingConstraintsCase_ == 4) {
            return (com.google.protobuf.Timestamp) startTimingConstraints_;
          }
          return com.google.protobuf.Timestamp.getDefaultInstance();
        }
      }
<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