@java.lang.Override
    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
      if (scaleOut_ != 0) {
        output.writeInt32(1, scaleOut_);
      }
      if (scaleIn_ != 0) {
        output.writeInt32(2, scaleIn_);
      }
      getUnknownFields().writeTo(output);
    }
<pre>
Required. The utilization triggering the scale-in operation in percent.
</pre>

<code>int32 scale_in = 2 [(.google.api.field_behavior) = REQUIRED];</code>

@return The scaleIn.
java-vmwareengine/proto-google-cloud-vmwareengine-v1/src/main/java/com/google/cloud/vmwareengine/v1/AutoscalingSettings.java