@java.lang.Override
  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
    }
    if (pageSize_ != 0) {
      output.writeInt32(2, pageSize_);
    }
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(pageToken_)) {
      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, pageToken_);
    }
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(filter_)) {
      com.google.protobuf.GeneratedMessageV3.writeString(output, 4, filter_);
    }
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(orderBy_)) {
      com.google.protobuf.GeneratedMessageV3.writeString(output, 5, orderBy_);
    }
    getUnknownFields().writeTo(output);
  }
<pre>
Sorts list results by a certain order. By default, returned results
are ordered by `name` in ascending order.
You can also sort results in descending order based on the `name` value
using `orderBy="name desc"`.
Currently, only ordering by `name` is supported.
</pre>

<code>string order_by = 5;</code>

@return The bytes for orderBy.
java-vmwareengine/proto-google-cloud-vmwareengine-v1/src/main/java/com/google/cloud/vmwareengine/v1/ListLoggingServersRequest.java