private com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.Timestamp,
            com.google.protobuf.Timestamp.Builder,
            com.google.protobuf.TimestampOrBuilder>
        getCaptureTimeFieldBuilder() {
      if (captureTimeBuilder_ == null) {
        captureTimeBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.protobuf.Timestamp,
                com.google.protobuf.Timestamp.Builder,
                com.google.protobuf.TimestampOrBuilder>(
                getCaptureTime(), getParentForChildren(), isClean());
        captureTime_ = null;
      }
      return captureTimeBuilder_;
    }
<pre>
Input only. The capture time of the packet.
</pre>

<code>
.google.protobuf.Timestamp capture_time = 1 [(.google.api.field_behavior) = INPUT_ONLY];
</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/PacketHeader.java