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

    size = 0;
    if (totalPages_ != 0L) {
      size += com.google.protobuf.CodedOutputStream.computeInt64Size(1, totalPages_);
    }
    if (translatedPages_ != 0L) {
      size += com.google.protobuf.CodedOutputStream.computeInt64Size(2, translatedPages_);
    }
    if (failedPages_ != 0L) {
      size += com.google.protobuf.CodedOutputStream.computeInt64Size(3, failedPages_);
    }
    if (totalBillablePages_ != 0L) {
      size += com.google.protobuf.CodedOutputStream.computeInt64Size(4, totalBillablePages_);
    }
    if (totalCharacters_ != 0L) {
      size += com.google.protobuf.CodedOutputStream.computeInt64Size(5, totalCharacters_);
    }
    if (translatedCharacters_ != 0L) {
      size += com.google.protobuf.CodedOutputStream.computeInt64Size(6, translatedCharacters_);
    }
    if (failedCharacters_ != 0L) {
      size += com.google.protobuf.CodedOutputStream.computeInt64Size(7, failedCharacters_);
    }
    if (totalBillableCharacters_ != 0L) {
      size += com.google.protobuf.CodedOutputStream.computeInt64Size(8, totalBillableCharacters_);
    }
    if (((bitField0_ & 0x00000001) != 0)) {
      size += com.google.protobuf.CodedOutputStream.computeMessageSize(9, getSubmitTime());
    }
    if (((bitField0_ & 0x00000002) != 0)) {
      size += com.google.protobuf.CodedOutputStream.computeMessageSize(10, getEndTime());
    }
    size += getUnknownFields().getSerializedSize();
    memoizedSize = size;
    return size;
  }
<pre>
The time when the operation is finished and
[google.longrunning.Operation.done][google.longrunning.Operation.done] is
set to true.
</pre>

<code>.google.protobuf.Timestamp end_time = 10;</code>
java-translate/proto-google-cloud-translate-v3beta1/src/main/java/com/google/cloud/translate/v3beta1/BatchTranslateDocumentResponse.java