public boolean hasCaptureTime() {
      return ((bitField0_ & 0x00000001) != 0);
    }
<pre>
Input only. The capture time of the packet.
</pre>

<code>
.google.protobuf.Timestamp capture_time = 1 [(.google.api.field_behavior) = INPUT_ONLY];
</code>

@return Whether the captureTime field is set.
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/PacketHeader.java