private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.vmwareengine.v1.LoggingServer,
            com.google.cloud.vmwareengine.v1.LoggingServer.Builder,
            com.google.cloud.vmwareengine.v1.LoggingServerOrBuilder>
        getLoggingServerFieldBuilder() {
      if (loggingServerBuilder_ == null) {
        loggingServerBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.vmwareengine.v1.LoggingServer,
                com.google.cloud.vmwareengine.v1.LoggingServer.Builder,
                com.google.cloud.vmwareengine.v1.LoggingServerOrBuilder>(
                getLoggingServer(), getParentForChildren(), isClean());
        loggingServer_ = null;
      }
      return loggingServerBuilder_;
    }
<pre>
Required. The initial description of a new logging server.
</pre>

<code>
.google.cloud.vmwareengine.v1.LoggingServer logging_server = 2 [(.google.api.field_behavior) = REQUIRED];
</code>
java-vmwareengine/proto-google-cloud-vmwareengine-v1/src/main/java/com/google/cloud/vmwareengine/v1/CreateLoggingServerRequest.java