@java.lang.Override
  public int getSerializedSize() {
    int size = memoizedSize;
    if (size != -1) return size;

    size = 0;
    if (((bitField0_ & 0x00000001) != 0)) {
      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getCreateTime());
    }
    if (symptomType_
        != com.google.cloud.tpu.v2alpha1.Symptom.SymptomType.SYMPTOM_TYPE_UNSPECIFIED.getNumber()) {
      size += com.google.protobuf.CodedOutputStream.computeEnumSize(2, symptomType_);
    }
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(details_)) {
      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, details_);
    }
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(workerId_)) {
      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, workerId_);
    }
    size += getUnknownFields().getSerializedSize();
    memoizedSize = size;
    return size;
  }
<pre>
A string used to uniquely distinguish a worker within a TPU node.
</pre>

<code>string worker_id = 4;</code>

@return The bytes for workerId.
java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/Symptom.java