@java.lang.Override
    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
      if (ppeLabelId_ != 0L) {
        output.writeInt64(1, ppeLabelId_);
      }
      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(ppeLabelString_)) {
        com.google.protobuf.GeneratedMessageV3.writeString(output, 2, ppeLabelString_);
      }
      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(ppeSupercategoryLabelString_)) {
        com.google.protobuf.GeneratedMessageV3.writeString(output, 3, ppeSupercategoryLabelString_);
      }
      if (ppeEntityId_ != 0L) {
        output.writeInt64(4, ppeEntityId_);
      }
      getUnknownFields().writeTo(output);
    }
<pre>
Entity id.
</pre>

<code>int64 ppe_entity_id = 4;</code>

@return The ppeEntityId.
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/PersonalProtectiveEquipmentDetectionOutput.java