@java.lang.Override
  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
    if (frequency_
        != com.google.cloud.storageinsights.v1.FrequencyOptions.Frequency.FREQUENCY_UNSPECIFIED
            .getNumber()) {
      output.writeEnum(1, frequency_);
    }
    if (((bitField0_ & 0x00000001) != 0)) {
      output.writeMessage(2, getStartDate());
    }
    if (((bitField0_ & 0x00000002) != 0)) {
      output.writeMessage(3, getEndDate());
    }
    getUnknownFields().writeTo(output);
  }
<pre>
The date on which report generation should stop (Inclusive).
UTC time zone.
</pre>

<code>.google.type.Date end_date = 3;</code>
java-storageinsights/proto-google-cloud-storageinsights-v1/src/main/java/com/google/cloud/storageinsights/v1/FrequencyOptions.java